Subtract 12/48 from 21/4
1st number: 5 1/4, 2nd number: 12/48
21/4 - 12/48 is 5/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 4 × 12 = 48,
21/4 = 21 × 12/4 × 12 = 252/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
12/48 = 12 × 1/48 × 1 = 12/48 - Subtract the two like fractions:
252/48 - 12/48 = 252 - 12/48 = 240/48 - After reducing the fraction, the answer is 5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-12/48 21/4-24/48 21/8-12/48 21/4-12/96 63/4-12/48 21/4-36/48 21/12-12/48 21/4-60/48 21/20-12/48 21/4-84/48 21/28-12/48