Subtract 42/48 from 2/28
2/28 - 42/48 is -45/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
2/28 = 2 × 12/28 × 12 = 24/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Subtract the two like fractions:
24/336 - 294/336 = 24 - 294/336 = -270/336 - After reducing the fraction, the answer is -45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28-42/48 2/28-84/48 2/56-42/48 2/28-42/96 6/28-42/48 2/84-42/48 10/28-42/48 14/28-42/48