Subtract 9/64 from 28/45
28/45 - 9/64 is 1387/2880.
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,
28/45 = 28 × 64/45 × 64 = 1792/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
9/64 = 9 × 45/64 × 45 = 405/2880 - Subtract the two like fractions:
1792/2880 - 405/2880 = 1792 - 405/2880 = 1387/2880
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-9/64 28/45-18/64 28/90-9/64 84/45-9/64 28/45-27/64 28/45-45/64 28/45-63/64