Subtract 28/72 from 4/15
4/15 - 28/72 is -11/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
4/15 = 4 × 24/15 × 24 = 96/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Subtract the two like fractions:
96/360 - 140/360 = 96 - 140/360 = -44/360 - After reducing the fraction, the answer is -11/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-28/72 4/15-56/72 4/30-28/72 12/15-28/72 4/15-84/72 4/45-28/72 20/15-28/72 4/75-28/72 28/15-28/72