Subtract 24/21 from 56/42
1st number: 1 14/42, 2nd number: 1 3/21
56/42 - 24/21 is 4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
56/42 = 56 × 1/42 × 1 = 56/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
24/21 = 24 × 2/21 × 2 = 48/42 - Subtract the two like fractions:
56/42 - 48/42 = 56 - 48/42 = 8/42 - After reducing the fraction, the answer is 4/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-48/21 56/84-24/21 56/42-24/42 56/42-72/21 56/42-24/63