Subtract 36/30 from 21/60
1st number: 21/60, 2nd number: 1 6/30
21/60 - 36/30 is -17/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 30 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 30 × 2 = 60,
36/30 = 36 × 2/30 × 2 = 72/60 - Subtract the two like fractions:
21/60 - 72/60 = 21 - 72/60 = -51/60 - After reducing the fraction, the answer is -17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60-36/30 21/60-72/30 21/60-36/60 63/60-36/30 21/60-36/90