Subtract 21/15 from 24/60
1st number: 24/60, 2nd number: 1 6/15
24/60 - 21/15 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
24/60 = 24 × 1/60 × 1 = 24/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
21/15 = 21 × 4/15 × 4 = 84/60 - Subtract the two like fractions:
24/60 - 84/60 = 24 - 84/60 = -60/60 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/60-21/15 24/60-42/15 24/60-21/30 72/60-21/15 24/60-63/15 24/60-21/45 24/60-21/75