Subtract 3/9 from 84/15
1st number: 5 9/15, 2nd number: 3/9
84/15 - 3/9 is 79/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
84/15 = 84 × 3/15 × 3 = 252/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
3/9 = 3 × 5/9 × 5 = 15/45 - Subtract the two like fractions:
252/45 - 15/45 = 252 - 15/45 = 237/45 - After reducing the fraction, the answer is 79/15
- In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-6/9 84/30-3/9 84/15-3/18 84/45-3/9 84/15-3/27 84/15-15/9 84/75-3/9 84/15-3/45 84/15-21/9 84/15-3/63