Subtract 49/42 from 7/48
1st number: 7/48, 2nd number: 1 7/42
7/48 - 49/42 is -49/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
7/48 = 7 × 7/48 × 7 = 49/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
49/42 = 49 × 8/42 × 8 = 392/336 - Subtract the two like fractions:
49/336 - 392/336 = 49 - 392/336 = -343/336 - After reducing the fraction, the answer is -49/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/48-49/42 7/48-98/42 7/96-49/42 7/48-49/84 21/48-49/42 35/48-49/42 49/48-49/42