Subtract 81/60 from 32/20
1st number: 1 12/20, 2nd number: 1 21/60
32/20 - 81/60 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
32/20 = 32 × 3/20 × 3 = 96/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Subtract the two like fractions:
96/60 - 81/60 = 96 - 81/60 = 15/60 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/20-81/60 32/40-81/60 96/20-81/60 32/60-81/60