Subtract 21/49 from 25/8
1st number: 3 1/8, 2nd number: 21/49
25/8 - 21/49 is 151/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 8 × 49 = 392,
25/8 = 25 × 49/8 × 49 = 1225/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Subtract the two like fractions:
1225/392 - 168/392 = 1225 - 168/392 = 1057/392 - After reducing the fraction, the answer is 151/56
- In mixed form: 239/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8-21/49 25/8-42/49 25/16-21/49 25/8-21/98 75/8-21/49 25/8-63/49 25/24-21/49 25/40-21/49 25/56-21/49