Subtract 75/54 from 10/72
1st number: 10/72, 2nd number: 1 21/54
10/72 - 75/54 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
10/72 = 10 × 3/72 × 3 = 30/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
75/54 = 75 × 4/54 × 4 = 300/216 - Subtract the two like fractions:
30/216 - 300/216 = 30 - 300/216 = -270/216 - After reducing the fraction, the answer is -5/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72-75/54 30/72-75/54 50/72-75/54 70/72-75/54