Subtract 42/36 from 60/21
1st number: 2 18/21, 2nd number: 1 6/36
60/21 - 42/36 is 71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
60/21 = 60 × 12/21 × 12 = 720/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Subtract the two like fractions:
720/252 - 294/252 = 720 - 294/252 = 426/252 - After reducing the fraction, the answer is 71/42
- In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21-84/36 60/42-42/36 60/21-42/72 60/63-42/36