Subtract 8/72 from 15/4
1st number: 3 3/4, 2nd number: 8/72
15/4 - 8/72 is 131/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
15/4 = 15 × 18/4 × 18 = 270/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
8/72 = 8 × 1/72 × 1 = 8/72 - Subtract the two like fractions:
270/72 - 8/72 = 270 - 8/72 = 262/72 - After reducing the fraction, the answer is 131/36
- In mixed form: 323/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-8/72 15/4-16/72 15/8-8/72 45/4-8/72 15/4-24/72 15/12-8/72 75/4-8/72 15/4-40/72 15/20-8/72 15/4-56/72 15/28-8/72