Subtract 80/36 from 84/28
1st number: 3 0/28, 2nd number: 2 8/36
84/28 - 80/36 is 7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
84/28 = 84 × 9/28 × 9 = 756/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
80/36 = 80 × 7/36 × 7 = 560/252 - Subtract the two like fractions:
756/252 - 560/252 = 756 - 560/252 = 196/252 - After reducing the fraction, the answer is 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-80/36 84/28-80/72