Subtract 25/42 from 84/56
1st number: 1 28/56, 2nd number: 25/42
84/56 - 25/42 is 19/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
84/56 = 84 × 3/56 × 3 = 252/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168 - Subtract the two like fractions:
252/168 - 100/168 = 252 - 100/168 = 152/168 - After reducing the fraction, the answer is 19/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-50/42 84/56-25/84 84/56-75/42