Subtract 84/9 from 80/15
1st number: 5 5/15, 2nd number: 9 3/9
80/15 - 84/9 is -4/1.
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,
80/15 = 80 × 3/15 × 3 = 240/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
84/9 = 84 × 5/9 × 5 = 420/45 - Subtract the two like fractions:
240/45 - 420/45 = 240 - 420/45 = -180/45 - After reducing the fraction, the answer is -4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-84/9 80/15-84/18 80/45-84/9 80/15-84/27 80/75-84/9 80/15-84/45 80/15-84/63