Subtract 15/72 from 28/16
1st number: 1 12/16, 2nd number: 15/72
28/16 - 15/72 is 37/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
28/16 = 28 × 9/16 × 9 = 252/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
15/72 = 15 × 2/72 × 2 = 30/144 - Subtract the two like fractions:
252/144 - 30/144 = 252 - 30/144 = 222/144 - After reducing the fraction, the answer is 37/24
- In mixed form: 113/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16-15/72 28/16-30/72 28/32-15/72 84/16-15/72 28/16-45/72 28/48-15/72 28/16-75/72 28/80-15/72