Subtract 3/72 from 3/4
3/4 - 3/72 is 17/24.
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,
3/4 = 3 × 18/4 × 18 = 54/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
3/72 = 3 × 1/72 × 1 = 3/72 - Subtract the two like fractions:
54/72 - 3/72 = 54 - 3/72 = 51/72 - After reducing the fraction, the answer is 17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4-3/72 3/4-6/72 3/8-3/72 9/4-3/72 3/4-9/72 3/12-3/72 15/4-3/72 3/4-15/72 3/20-3/72 21/4-3/72 3/4-21/72 3/28-3/72