Subtract 28/48 from 28/84
28/84 - 28/48 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
28/84 = 28 × 4/84 × 4 = 112/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
28/48 = 28 × 7/48 × 7 = 196/336 - Subtract the two like fractions:
112/336 - 196/336 = 112 - 196/336 = -84/336 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-28/48 28/84-56/48 28/84-28/96 28/84-84/48