Subtract 36/12 from 21/5
1st number: 4 1/5, 2nd number: 3 0/12
21/5 - 36/12 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
21/5 = 21 × 12/5 × 12 = 252/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
36/12 = 36 × 5/12 × 5 = 180/60 - Subtract the two like fractions:
252/60 - 180/60 = 252 - 180/60 = 72/60 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5-36/12 21/5-72/12 21/10-36/12 21/5-36/24 63/5-36/12 21/15-36/12 21/25-36/12 21/5-36/60 21/35-36/12 21/5-36/84