Subtract 28/48 from 24/42
24/42 - 28/48 is -1/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
24/42 = 24 × 8/42 × 8 = 192/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
28/48 = 28 × 7/48 × 7 = 196/336 - Subtract the two like fractions:
192/336 - 196/336 = 192 - 196/336 = -4/336 - After reducing the fraction, the answer is -1/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/42-28/48 24/42-56/48 24/84-28/48 24/42-28/96 72/42-28/48 24/42-84/48