Subtract 16/20 from 70/7
1st number: 10 0/7, 2nd number: 16/20
70/7 - 16/20 is 46/5.
Steps for subtracting 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,
70/7 = 70 × 20/7 × 20 = 1400/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
16/20 = 16 × 7/20 × 7 = 112/140 - Subtract the two like fractions:
1400/140 - 112/140 = 1400 - 112/140 = 1288/140 - After reducing the fraction, the answer is 46/5
- In mixed form: 91/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7-32/20 70/14-16/20 70/7-16/40 70/7-48/20 70/21-16/20 70/7-16/60 70/7-80/20 70/35-16/20 70/49-16/20