Subtract 9/12 from 25/63
25/63 - 9/12 is -89/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
25/63 = 25 × 4/63 × 4 = 100/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
9/12 = 9 × 21/12 × 21 = 189/252 - Subtract the two like fractions:
100/252 - 189/252 = 100 - 189/252 = -89/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/63-9/12 25/63-18/12 25/63-9/24 75/63-9/12 25/63-27/12 25/63-9/36 25/63-45/12 25/63-9/60 25/63-63/12 25/63-9/84