Subtract 4/48 from 3/84
3/84 - 4/48 is -1/21.
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,
3/84 = 3 × 4/84 × 4 = 12/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
4/48 = 4 × 7/48 × 7 = 28/336 - Subtract the two like fractions:
12/336 - 28/336 = 12 - 28/336 = -16/336 - After reducing the fraction, the answer is -1/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-4/48 3/84-8/48 3/84-4/96 9/84-4/48 3/84-12/48 15/84-4/48 3/84-20/48 21/84-4/48 3/84-28/48