Subtract 9/15 from 84/12
1st number: 7 0/12, 2nd number: 9/15
84/12 - 9/15 is 32/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Subtract the two like fractions:
420/60 - 36/60 = 420 - 36/60 = 384/60 - After reducing the fraction, the answer is 32/5
- In mixed form: 62/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-18/15 84/24-9/15 84/12-9/30 84/12-27/15 84/36-9/15 84/12-9/45 84/12-45/15 84/60-9/15 84/12-9/75 84/12-63/15