Subtract 12/64 from 7/9
7/9 - 12/64 is 85/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 9 × 64 = 576,
7/9 = 7 × 64/9 × 64 = 448/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
12/64 = 12 × 9/64 × 9 = 108/576 - Subtract the two like fractions:
448/576 - 108/576 = 448 - 108/576 = 340/576 - After reducing the fraction, the answer is 85/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-12/64 7/9-24/64 7/18-12/64 21/9-12/64 7/9-36/64 7/27-12/64 35/9-12/64 7/9-60/64 7/45-12/64 49/9-12/64 7/9-84/64 7/63-12/64