Subtract 12/56 from 42/28
1st number: 1 14/28, 2nd number: 12/56
42/28 - 12/56 is 9/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
42/28 = 42 × 2/28 × 2 = 84/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
12/56 = 12 × 1/56 × 1 = 12/56 - Subtract the two like fractions:
84/56 - 12/56 = 84 - 12/56 = 72/56 - After reducing the fraction, the answer is 9/7
- In mixed form: 12/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-12/56 42/28-24/56 42/56-12/56 42/28-36/56 42/84-12/56 42/28-60/56 42/28-84/56