Subtract 3/36 from 21/25
21/25 - 3/36 is 227/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
21/25 = 21 × 36/25 × 36 = 756/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
3/36 = 3 × 25/36 × 25 = 75/900 - Subtract the two like fractions:
756/900 - 75/900 = 756 - 75/900 = 681/900 - After reducing the fraction, the answer is 227/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-3/36 21/25-6/36 21/50-3/36 21/25-3/72 63/25-3/36 21/25-9/36 21/75-3/36 21/25-15/36 21/25-21/36