Subtract 25/84 from 28/56
28/56 - 25/84 is 17/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
28/56 = 28 × 3/56 × 3 = 84/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
25/84 = 25 × 2/84 × 2 = 50/168 - Subtract the two like fractions:
84/168 - 50/168 = 84 - 50/168 = 34/168 - After reducing the fraction, the answer is 17/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56-50/84 84/56-25/84 28/56-75/84