Subtract 72/27 from 4/5
1st number: 4/5, 2nd number: 2 18/27
4/5 - 72/27 is -28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 5 × 27 = 135,
4/5 = 4 × 27/5 × 27 = 108/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
72/27 = 72 × 5/27 × 5 = 360/135 - Subtract the two like fractions:
108/135 - 360/135 = 108 - 360/135 = -252/135 - After reducing the fraction, the answer is -28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-72/27 4/10-72/27 4/5-72/54 12/5-72/27 4/15-72/27 4/5-72/81 20/5-72/27 4/25-72/27 28/5-72/27 4/35-72/27