Subtract 9/42 from 56/12
1st number: 4 8/12, 2nd number: 9/42
56/12 - 9/42 is 187/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
56/12 = 56 × 7/12 × 7 = 392/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Subtract the two like fractions:
392/84 - 18/84 = 392 - 18/84 = 374/84 - After reducing the fraction, the answer is 187/42
- In mixed form: 419/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-18/42 56/24-9/42 56/12-9/84 56/12-27/42 56/36-9/42 56/12-45/42 56/60-9/42 56/12-63/42 56/84-9/42