Subtract 84/56 from 12/28
1st number: 12/28, 2nd number: 1 28/56
12/28 - 84/56 is -15/14.
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,
12/28 = 12 × 2/28 × 2 = 24/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
84/56 = 84 × 1/56 × 1 = 84/56 - Subtract the two like fractions:
24/56 - 84/56 = 24 - 84/56 = -60/56 - After reducing the fraction, the answer is -15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-84/56 12/56-84/56 36/28-84/56 12/84-84/56 60/28-84/56 84/28-84/56