Subtract 25/24 from 7/42
1st number: 7/42, 2nd number: 1 1/24
7/42 - 25/24 is -7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
7/42 = 7 × 4/42 × 4 = 28/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
25/24 = 25 × 7/24 × 7 = 175/168 - Subtract the two like fractions:
28/168 - 175/168 = 28 - 175/168 = -147/168 - After reducing the fraction, the answer is -7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42-25/24 7/42-50/24 7/84-25/24 7/42-25/48 21/42-25/24 7/42-75/24 7/42-25/72 35/42-25/24 49/42-25/24