Subtract 81/84 from 84/36
1st number: 2 12/36, 2nd number: 81/84
84/36 - 81/84 is 115/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
84/36 = 84 × 7/36 × 7 = 588/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Subtract the two like fractions:
588/252 - 243/252 = 588 - 243/252 = 345/252 - After reducing the fraction, the answer is 115/84
- In mixed form: 131/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72-81/84