Subtract 21/64 from 18/2
1st number: 9 0/2, 2nd number: 21/64
18/2 - 21/64 is 555/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 64 is 64
Next, find the equivalent fraction of both fractional numbers with denominator 64 - For the 1st fraction, since 2 × 32 = 64,
18/2 = 18 × 32/2 × 32 = 576/64 - Likewise, for the 2nd fraction, since 64 × 1 = 64,
21/64 = 21 × 1/64 × 1 = 21/64 - Subtract the two like fractions:
576/64 - 21/64 = 576 - 21/64 = 555/64 - In mixed form: 843/64
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2-21/64 18/2-42/64 18/4-21/64 54/2-21/64 18/2-63/64 18/6-21/64 90/2-21/64 18/10-21/64 18/14-21/64