Subtract 42/63 from 48/28
1st number: 1 20/28, 2nd number: 42/63
48/28 - 42/63 is 22/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
48/28 = 48 × 9/28 × 9 = 432/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
42/63 = 42 × 4/63 × 4 = 168/252 - Subtract the two like fractions:
432/252 - 168/252 = 432 - 168/252 = 264/252 - After reducing the fraction, the answer is 22/21
- In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/28-42/63 48/28-84/63 48/56-42/63 48/84-42/63