Subtract 10/28 from 21/10
1st number: 2 1/10, 2nd number: 10/28
21/10 - 10/28 is 61/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
21/10 = 21 × 14/10 × 14 = 294/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Subtract the two like fractions:
294/140 - 50/140 = 294 - 50/140 = 244/140 - After reducing the fraction, the answer is 61/35
- In mixed form: 126/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-10/28 21/10-20/28 21/20-10/28 21/10-10/56 63/10-10/28 21/10-30/28 21/30-10/28 21/10-10/84 21/10-50/28 21/50-10/28 21/10-70/28 21/70-10/28