Subtract 4/20 from 27/15
1st number: 1 12/15, 2nd number: 4/20
27/15 - 4/20 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
27/15 = 27 × 4/15 × 4 = 108/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
4/20 = 4 × 3/20 × 3 = 12/60 - Subtract the two like fractions:
108/60 - 12/60 = 108 - 12/60 = 96/60 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-4/20 27/15-8/20 27/30-4/20 27/15-4/40 81/15-4/20 27/15-12/20 27/45-4/20 27/15-4/60 27/75-4/20 27/15-28/20