Subtract 3/18 from 75/72
1st number: 1 3/72, 2nd number: 3/18
75/72 - 3/18 is 7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
75/72 = 75 × 1/72 × 1 = 75/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
3/18 = 3 × 4/18 × 4 = 12/72 - Subtract the two like fractions:
75/72 - 12/72 = 75 - 12/72 = 63/72 - After reducing the fraction, the answer is 7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/72-6/18 75/72-3/36 75/72-9/18 75/72-3/54 75/72-15/18 75/72-3/90 75/72-21/18