Subtract 70/60 from 20/7
1st number: 2 6/7, 2nd number: 1 10/60
20/7 - 70/60 is 71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 7 × 60 = 420,
20/7 = 20 × 60/7 × 60 = 1200/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420 - Subtract the two like fractions:
1200/420 - 490/420 = 1200 - 490/420 = 710/420 - After reducing the fraction, the answer is 71/42
- In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7-70/60 20/14-70/60 60/7-70/60 20/21-70/60 20/35-70/60 20/49-70/60