Subtract 21/60 from 21/16
1st number: 1 5/16, 2nd number: 21/60
21/16 - 21/60 is 77/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Subtract the two like fractions:
315/240 - 84/240 = 315 - 84/240 = 231/240 - After reducing the fraction, the answer is 77/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16-21/60 21/16-42/60 21/32-21/60 63/16-21/60 21/16-63/60 21/48-21/60 21/80-21/60