Subtract 8/5 from 21/60
1st number: 21/60, 2nd number: 1 3/5
21/60 - 8/5 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
8/5 = 8 × 12/5 × 12 = 96/60 - Subtract the two like fractions:
21/60 - 96/60 = 21 - 96/60 = -75/60 - After reducing the fraction, the answer is -5/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60-8/5 21/60-16/5 21/60-8/10 63/60-8/5 21/60-24/5 21/60-8/15 21/60-40/5 21/60-8/25 21/60-56/5 21/60-8/35