Subtract 42/25 from 21/6
1st number: 3 3/6, 2nd number: 1 17/25
21/6 - 42/25 is 91/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
42/25 = 42 × 6/25 × 6 = 252/150 - Subtract the two like fractions:
525/150 - 252/150 = 525 - 252/150 = 273/150 - After reducing the fraction, the answer is 91/50
- In mixed form: 141/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-42/25 21/6-84/25 21/12-42/25 21/6-42/50 63/6-42/25 21/18-42/25 21/6-42/75 21/30-42/25 21/42-42/25