Subtract 2/21 from 25/36
25/36 - 2/21 is 151/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
25/36 = 25 × 7/36 × 7 = 175/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
2/21 = 2 × 12/21 × 12 = 24/252 - Subtract the two like fractions:
175/252 - 24/252 = 175 - 24/252 = 151/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/36-2/21 25/36-4/21 25/72-2/21 25/36-2/42 75/36-2/21 25/36-6/21 25/36-2/63 25/36-10/21 25/36-14/21