Subtract 21/9 from 4/48
1st number: 4/48, 2nd number: 2 3/9
4/48 - 21/9 is -9/4.
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,
4/48 = 4 × 3/48 × 3 = 12/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
21/9 = 21 × 16/9 × 16 = 336/144 - Subtract the two like fractions:
12/144 - 336/144 = 12 - 336/144 = -324/144 - After reducing the fraction, the answer is -9/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/48-21/9 4/48-42/9 4/96-21/9 4/48-21/18 12/48-21/9 4/48-63/9 4/48-21/27 20/48-21/9 4/48-21/45 28/48-21/9 4/48-21/63