Subtract 35/7 from 21/4
1st number: 5 1/4, 2nd number: 5 0/7
21/4 - 35/7 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
21/4 = 21 × 7/4 × 7 = 147/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
35/7 = 35 × 4/7 × 4 = 140/28 - Subtract the two like fractions:
147/28 - 140/28 = 147 - 140/28 = 7/28 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-35/7 21/4-70/7 21/8-35/7 21/4-35/14 63/4-35/7 21/12-35/7 21/4-35/21 21/20-35/7 21/28-35/7 21/4-35/49