Subtract 84/4 from 28/15
1st number: 1 13/15, 2nd number: 21 0/4
28/15 - 84/4 is -287/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
84/4 = 84 × 15/4 × 15 = 1260/60 - Subtract the two like fractions:
112/60 - 1260/60 = 112 - 1260/60 = -1148/60 - After reducing the fraction, the answer is -287/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-84/4 28/30-84/4 28/15-84/8 84/15-84/4 28/45-84/4 28/15-84/12 28/75-84/4 28/15-84/20 28/15-84/28