Subtract 28/36 from 25/84
25/84 - 28/36 is -121/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
25/84 = 25 × 3/84 × 3 = 75/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252 - Subtract the two like fractions:
75/252 - 196/252 = 75 - 196/252 = -121/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84-28/36 25/84-56/36 25/84-28/72 75/84-28/36 25/84-84/36