Subtract 72/27 from 16/15
1st number: 1 1/15, 2nd number: 2 18/27
16/15 - 72/27 is -8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
16/15 = 16 × 9/15 × 9 = 144/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
72/27 = 72 × 5/27 × 5 = 360/135 - Subtract the two like fractions:
144/135 - 360/135 = 144 - 360/135 = -216/135 - After reducing the fraction, the answer is -8/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/15-72/27 16/30-72/27 16/15-72/54 48/15-72/27 16/45-72/27 16/15-72/81 80/15-72/27 16/75-72/27