Subtract 2/72 from 7/9
7/9 - 2/72 is 3/4.
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,
7/9 = 7 × 8/9 × 8 = 56/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
2/72 = 2 × 1/72 × 1 = 2/72 - Subtract the two like fractions:
56/72 - 2/72 = 56 - 2/72 = 54/72 - After reducing the fraction, the answer is 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-2/72 7/9-4/72 7/18-2/72 21/9-2/72 7/9-6/72 7/27-2/72 35/9-2/72 7/9-10/72 7/45-2/72 49/9-2/72 7/9-14/72 7/63-2/72