Subtract 2/64 from 21/25
21/25 - 2/64 is 647/800.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 64 is 1600
Next, find the equivalent fraction of both fractional numbers with denominator 1600 - For the 1st fraction, since 25 × 64 = 1600,
21/25 = 21 × 64/25 × 64 = 1344/1600 - Likewise, for the 2nd fraction, since 64 × 25 = 1600,
2/64 = 2 × 25/64 × 25 = 50/1600 - Subtract the two like fractions:
1344/1600 - 50/1600 = 1344 - 50/1600 = 1294/1600 - After reducing the fraction, the answer is 647/800
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-2/64 21/25-4/64 21/50-2/64 63/25-2/64 21/25-6/64 21/75-2/64 21/25-10/64 21/25-14/64