Subtract 4/56 from 25/42
25/42 - 4/56 is 11/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168 - Subtract the two like fractions:
100/168 - 12/168 = 100 - 12/168 = 88/168 - After reducing the fraction, the answer is 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-4/56 25/42-8/56 25/84-4/56 75/42-4/56 25/42-12/56 25/42-20/56 25/42-28/56