Subtract 3/72 from 8/9
8/9 - 3/72 is 61/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
8/9 = 8 × 8/9 × 8 = 64/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
3/72 = 3 × 1/72 × 1 = 3/72 - Subtract the two like fractions:
64/72 - 3/72 = 64 - 3/72 = 61/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/9-3/72 8/9-6/72 8/18-3/72 24/9-3/72 8/9-9/72 8/27-3/72 40/9-3/72 8/9-15/72 8/45-3/72 56/9-3/72 8/9-21/72 8/63-3/72