Subtract 28/16 from 5/84
1st number: 5/84, 2nd number: 1 12/16
5/84 - 28/16 is -71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
5/84 = 5 × 4/84 × 4 = 20/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
28/16 = 28 × 21/16 × 21 = 588/336 - Subtract the two like fractions:
20/336 - 588/336 = 20 - 588/336 = -568/336 - After reducing the fraction, the answer is -71/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/84-28/16 5/84-56/16 5/84-28/32 15/84-28/16 5/84-84/16 5/84-28/48 25/84-28/16 5/84-28/80 35/84-28/16