Subtract 96/7 from 70/21
1st number: 3 7/21, 2nd number: 13 5/7
70/21 - 96/7 is -218/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
70/21 = 70 × 1/21 × 1 = 70/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
96/7 = 96 × 3/7 × 3 = 288/21 - Subtract the two like fractions:
70/21 - 288/21 = 70 - 288/21 = -218/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-96/7 70/21-96/14 70/63-96/7 70/21-96/21 70/21-96/35 70/21-96/49