Subtract 7/64 from 8/18
8/18 - 7/64 is 193/576.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 18 × 32 = 576,
8/18 = 8 × 32/18 × 32 = 256/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
7/64 = 7 × 9/64 × 9 = 63/576 - Subtract the two like fractions:
256/576 - 63/576 = 256 - 63/576 = 193/576
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18-7/64 8/18-14/64 8/36-7/64 24/18-7/64 8/18-21/64 8/54-7/64 40/18-7/64 8/18-35/64 8/90-7/64 56/18-7/64 8/18-49/64