Subtract 25/9 from 21/48
1st number: 21/48, 2nd number: 2 7/9
21/48 - 25/9 is -337/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
25/9 = 25 × 16/9 × 16 = 400/144 - Subtract the two like fractions:
63/144 - 400/144 = 63 - 400/144 = -337/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48-25/9 21/48-50/9 21/96-25/9 21/48-25/18 63/48-25/9 21/48-75/9 21/48-25/27 21/48-25/45 21/48-25/63