Subtract 40/63 from 25/28
25/28 - 40/63 is 65/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
25/28 = 25 × 9/28 × 9 = 225/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
40/63 = 40 × 4/63 × 4 = 160/252 - Subtract the two like fractions:
225/252 - 160/252 = 225 - 160/252 = 65/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28-40/63 25/28-80/63 25/56-40/63 75/28-40/63 25/84-40/63