Subtract 21/16 from 20/60
1st number: 20/60, 2nd number: 1 5/16
20/60 - 21/16 is -47/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
20/60 = 20 × 4/60 × 4 = 80/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Subtract the two like fractions:
80/240 - 315/240 = 80 - 315/240 = -235/240 - After reducing the fraction, the answer is -47/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/60-21/16 20/60-42/16 20/60-21/32 20/60-63/16 20/60-21/48 20/60-21/80