Subtract 3/21 from 98/56
1st number: 1 42/56, 2nd number: 3/21
98/56 - 3/21 is 45/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
98/56 = 98 × 3/56 × 3 = 294/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
3/21 = 3 × 8/21 × 8 = 24/168 - Subtract the two like fractions:
294/168 - 24/168 = 294 - 24/168 = 270/168 - After reducing the fraction, the answer is 45/28
- In mixed form: 117/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/56-6/21 98/56-3/42 98/56-9/21 98/56-3/63 98/56-15/21