Add 75/7 and 7/20
1st number: 10 5/7, 2nd number: 7/20
75/7 + 7/20 is 1549/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
75/7 = 75 × 20/7 × 20 = 1500/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Add the two like fractions:
1500/140 + 49/140 = 1500 + 49/140 = 1549/140 - So, 75/7 + 7/20 = 1549/140
In mixed form: 119/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/7+14/20 75/14+7/20 75/7+7/40 75/7+21/20 75/21+7/20 75/7+7/60 75/7+35/20 75/35+7/20 75/7+49/20 75/49+7/20