Subtract 6/24 from 90/20
1st number: 4 10/20, 2nd number: 6/24
90/20 - 6/24 is 17/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 20 × 6 = 120,
90/20 = 90 × 6/20 × 6 = 540/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
6/24 = 6 × 5/24 × 5 = 30/120 - Subtract the two like fractions:
540/120 - 30/120 = 540 - 30/120 = 510/120 - After reducing the fraction, the answer is 17/4
- In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-12/24 90/40-6/24 90/20-6/48 90/20-18/24 90/60-6/24 90/20-6/72 90/20-30/24 90/20-42/24