Subtract 28/30 from 84/56
1st number: 1 28/56, 2nd number: 28/30
84/56 - 28/30 is 17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
84/56 = 84 × 15/56 × 15 = 1260/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
28/30 = 28 × 28/30 × 28 = 784/840 - Subtract the two like fractions:
1260/840 - 784/840 = 1260 - 784/840 = 476/840 - After reducing the fraction, the answer is 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-56/30 84/56-28/60 84/56-84/30 84/56-28/90