Subtract 9/4 from 27/15
1st number: 1 12/15, 2nd number: 2 1/4
27/15 - 9/4 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 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 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Subtract the two like fractions:
108/60 - 135/60 = 108 - 135/60 = -27/60 - After reducing the fraction, the answer is -9/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-9/4 27/15-18/4 27/30-9/4 27/15-9/8 81/15-9/4 27/15-27/4 27/45-9/4 27/15-9/12 27/15-45/4 27/75-9/4 27/15-9/20 27/15-63/4 27/15-9/28