Subtract 15/64 from 8/45
8/45 - 15/64 is -163/2880.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 45 × 64 = 2880,
8/45 = 8 × 64/45 × 64 = 512/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
15/64 = 15 × 45/64 × 45 = 675/2880 - Subtract the two like fractions:
512/2880 - 675/2880 = 512 - 675/2880 = -163/2880
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-15/64 8/45-30/64 8/90-15/64 24/45-15/64 8/45-45/64 40/45-15/64 8/45-75/64 56/45-15/64