Subtract 8/30 from 90/15
1st number: 6 0/15, 2nd number: 8/30
90/15 - 8/30 is 86/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
90/15 = 90 × 2/15 × 2 = 180/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
8/30 = 8 × 1/30 × 1 = 8/30 - Subtract the two like fractions:
180/30 - 8/30 = 180 - 8/30 = 172/30 - After reducing the fraction, the answer is 86/15
- In mixed form: 511/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-16/30 90/30-8/30 90/15-8/60 90/15-24/30 90/45-8/30 90/15-8/90 90/15-40/30 90/75-8/30 90/15-56/30