Subtract 30/24 from 21/48
1st number: 21/48, 2nd number: 1 6/24
21/48 - 30/24 is -13/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 24 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
21/48 = 21 × 1/48 × 1 = 21/48 - Likewise, for the 2nd fraction, since 24 × 2 = 48,
30/24 = 30 × 2/24 × 2 = 60/48 - Subtract the two like fractions:
21/48 - 60/48 = 21 - 60/48 = -39/48 - After reducing the fraction, the answer is -13/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48-30/24 21/48-60/24 21/96-30/24 21/48-30/48 63/48-30/24 21/48-90/24 21/48-30/72