Subtract 21/60 from 36/28
1st number: 1 8/28, 2nd number: 21/60
36/28 - 21/60 is 131/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
36/28 = 36 × 15/28 × 15 = 540/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Subtract the two like fractions:
540/420 - 147/420 = 540 - 147/420 = 393/420 - After reducing the fraction, the answer is 131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28-21/60 36/28-42/60 36/56-21/60 36/28-63/60 36/84-21/60