Subtract 6/21 from 25/36
25/36 - 6/21 is 103/252.
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,
6/21 = 6 × 12/21 × 12 = 72/252 - Subtract the two like fractions:
175/252 - 72/252 = 175 - 72/252 = 103/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/36-6/21 25/36-12/21 25/72-6/21 25/36-6/42 75/36-6/21 25/36-18/21 25/36-6/63 25/36-30/21 25/36-42/21