Subtract 90/24 from 80/15
1st number: 5 5/15, 2nd number: 3 18/24
80/15 - 90/24 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
80/15 = 80 × 8/15 × 8 = 640/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120 - Subtract the two like fractions:
640/120 - 450/120 = 640 - 450/120 = 190/120 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-90/24 80/15-90/48 80/45-90/24 80/15-90/72 80/75-90/24