Name
Date

1
20/14+18/2=

2
15/13+16/7=

3
20/18+14/11=

4
6/4+8/5=

5
15/2+12/10=

6
19/17+15/9=

7
13/8+10/3=

8
13/7+19/11=

9
11/10+19/7=

10
18/15+15/3=

11
7/4-12/10=

12
18/11-9/8=

13
12/2-18/13=

14
12/2-6/4=

15
14/6-15/7=

16
13/8-15/14=

17
11/6-13/10=

18
20/12-12/11=

19
16/2-8/4=

20
9/4-18/10=

Show All Workout
1
20/14+18/2=
737
Steps
2014
+
182
Find the lcm for both denominators
LCM(14, 2) = 14
Make all the denominators equal to each other
2014
=
20 x 1414 x 14
=
20 x 114
=
2014
182
=
18 x 142 x 14
=
18 x 714
=
12614
2014
+
12614
=
20 + 12614
=
14614
simplify the fraction
GCF(146, 14) = 2
14614
=
146 ÷ 214 ÷ 2
=
737
2014
+
182
=
737
2
15/13+16/7=
31391
Steps
1513
+
167
Find the lcm for both denominators
LCM(13, 7) = 91
Make all the denominators equal to each other
1513
=
15 x 9113 x 91
=
15 x 791
=
10591
167
=
16 x 917 x 91
=
16 x 1391
=
20891
10591
+
20891
=
105 + 20891
=
31391
1513
+
167
=
31391
3
20/18+14/11=
23699
Steps
2018
+
1411
Find the lcm for both denominators
LCM(18, 11) = 198
Make all the denominators equal to each other
2018
=
20 x 19818 x 198
=
20 x 11198
=
220198
1411
=
14 x 19811 x 198
=
14 x 18198
=
252198
220198
+
252198
=
220 + 252198
=
472198
simplify the fraction
GCF(472, 198) = 2
472198
=
472 ÷ 2198 ÷ 2
=
23699
2018
+
1411
=
23699
4
6/4+8/5=
3110
Steps
64
+
85
Find the lcm for both denominators
LCM(4, 5) = 20
Make all the denominators equal to each other
64
=
6 x 204 x 20
=
6 x 520
=
3020
85
=
8 x 205 x 20
=
8 x 420
=
3220
3020
+
3220
=
30 + 3220
=
6220
simplify the fraction
GCF(62, 20) = 2
6220
=
62 ÷ 220 ÷ 2
=
3110
64
+
85
=
3110
5
15/2+12/10=
8710
Steps
152
+
1210
Find the lcm for both denominators
LCM(2, 10) = 10
Make all the denominators equal to each other
152
=
15 x 102 x 10
=
15 x 510
=
7510
1210
=
12 x 1010 x 10
=
12 x 110
=
1210
7510
+
1210
=
75 + 1210
=
8710
152
+
1210
=
8710
6
19/17+15/9=
14251
Steps
1917
+
159
Find the lcm for both denominators
LCM(17, 9) = 153
Make all the denominators equal to each other
1917
=
19 x 15317 x 153
=
19 x 9153
=
171153
159
=
15 x 1539 x 153
=
15 x 17153
=
255153
171153
+
255153
=
171 + 255153
=
426153
simplify the fraction
GCF(426, 153) = 3
426153
=
426 ÷ 3153 ÷ 3
=
14251
1917
+
159
=
14251
7
13/8+10/3=
11924
Steps
138
+
103
Find the lcm for both denominators
LCM(8, 3) = 24
Make all the denominators equal to each other
138
=
13 x 248 x 24
=
13 x 324
=
3924
103
=
10 x 243 x 24
=
10 x 824
=
8024
3924
+
8024
=
39 + 8024
=
11924
138
+
103
=
11924
8
13/7+19/11=
27677
Steps
137
+
1911
Find the lcm for both denominators
LCM(7, 11) = 77
Make all the denominators equal to each other
137
=
13 x 777 x 77
=
13 x 1177
=
14377
1911
=
19 x 7711 x 77
=
19 x 777
=
13377
14377
+
13377
=
143 + 13377
=
27677
137
+
1911
=
27677
9
11/10+19/7=
26770
Steps
1110
+
197
Find the lcm for both denominators
LCM(10, 7) = 70
Make all the denominators equal to each other
1110
=
11 x 7010 x 70
=
11 x 770
=
7770
197
=
19 x 707 x 70
=
19 x 1070
=
19070
7770
+
19070
=
77 + 19070
=
26770
1110
+
197
=
26770
10
18/15+15/3=
315
Steps
1815
+
153
Find the lcm for both denominators
LCM(15, 3) = 15
Make all the denominators equal to each other
1815
=
18 x 1515 x 15
=
18 x 115
=
1815
153
=
15 x 153 x 15
=
15 x 515
=
7515
1815
+
7515
=
18 + 7515
=
9315
simplify the fraction
GCF(93, 15) = 3
9315
=
93 ÷ 315 ÷ 3
=
315
1815
+
153
=
315
11
7/4-12/10=
1120
Steps
74
-
1210
Find the lcm for both denominators
LCM(4, 10) = 20
Make all the denominators equal to each other
74
=
7 x 204 x 20
=
7 x 520
=
3520
1210
=
12 x 2010 x 20
=
12 x 220
=
2420
3520
-
2420
=
35 - 2420
=
1120
74
-
1210
=
1120
12
18/11-9/8=
4588
Steps
1811
-
98
Find the lcm for both denominators
LCM(11, 8) = 88
Make all the denominators equal to each other
1811
=
18 x 8811 x 88
=
18 x 888
=
14488
98
=
9 x 888 x 88
=
9 x 1188
=
9988
14488
-
9988
=
144 - 9988
=
4588
1811
-
98
=
4588
13
12/2-18/13=
6013
Steps
122
-
1813
Find the lcm for both denominators
LCM(2, 13) = 26
Make all the denominators equal to each other
122
=
12 x 262 x 26
=
12 x 1326
=
15626
1813
=
18 x 2613 x 26
=
18 x 226
=
3626
15626
-
3626
=
156 - 3626
=
12026
simplify the fraction
GCF(120, 26) = 2
12026
=
120 ÷ 226 ÷ 2
=
6013
122
-
1813
=
6013
14
12/2-6/4=
92
Steps
122
-
64
Find the lcm for both denominators
LCM(2, 4) = 4
Make all the denominators equal to each other
122
=
12 x 42 x 4
=
12 x 24
=
244
64
=
6 x 44 x 4
=
6 x 14
=
64
244
-
64
=
24 - 64
=
184
simplify the fraction
GCF(18, 4) = 2
184
=
18 ÷ 24 ÷ 2
=
92
122
-
64
=
92
15
14/6-15/7=
421
Steps
146
-
157
Find the lcm for both denominators
LCM(6, 7) = 42
Make all the denominators equal to each other
146
=
14 x 426 x 42
=
14 x 742
=
9842
157
=
15 x 427 x 42
=
15 x 642
=
9042
9842
-
9042
=
98 - 9042
=
842
simplify the fraction
GCF(8, 42) = 2
842
=
8 ÷ 242 ÷ 2
=
421
146
-
157
=
421
16
13/8-15/14=
3156
Steps
138
-
1514
Find the lcm for both denominators
LCM(8, 14) = 56
Make all the denominators equal to each other
138
=
13 x 568 x 56
=
13 x 756
=
9156
1514
=
15 x 5614 x 56
=
15 x 456
=
6056
9156
-
6056
=
91 - 6056
=
3156
138
-
1514
=
3156
17
11/6-13/10=
815
Steps
116
-
1310
Find the lcm for both denominators
LCM(6, 10) = 30
Make all the denominators equal to each other
116
=
11 x 306 x 30
=
11 x 530
=
5530
1310
=
13 x 3010 x 30
=
13 x 330
=
3930
5530
-
3930
=
55 - 3930
=
1630
simplify the fraction
GCF(16, 30) = 2
1630
=
16 ÷ 230 ÷ 2
=
815
116
-
1310
=
815
18
20/12-12/11=
1933
Steps
2012
-
1211
Find the lcm for both denominators
LCM(12, 11) = 132
Make all the denominators equal to each other
2012
=
20 x 13212 x 132
=
20 x 11132
=
220132
1211
=
12 x 13211 x 132
=
12 x 12132
=
144132
220132
-
144132
=
220 - 144132
=
76132
simplify the fraction
GCF(76, 132) = 4
76132
=
76 ÷ 4132 ÷ 4
=
1933
2012
-
1211
=
1933
19
16/2-8/4=
6
Steps
162
-
84
Find the lcm for both denominators
LCM(2, 4) = 4
Make all the denominators equal to each other
162
=
16 x 42 x 4
=
16 x 24
=
324
84
=
8 x 44 x 4
=
8 x 14
=
84
324
-
84
=
32 - 84
=
244
simplify the fraction
GCF(24, 4) = 4
244
=
24 ÷ 44 ÷ 4
=
61
= 6
162
-
84
=
6
20
9/4-18/10=
920
Steps
94
-
1810
Find the lcm for both denominators
LCM(4, 10) = 20
Make all the denominators equal to each other
94
=
9 x 204 x 20
=
9 x 520
=
4520
1810
=
18 x 2010 x 20
=
18 x 220
=
3620
4520
-
3620
=
45 - 3620
=
920
94
-
1810
=
920