Subtract 20/6 from 90/5
1st number: 18 0/5, 2nd number: 3 2/6
90/5 - 20/6 is 44/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
90/5 = 90 × 6/5 × 6 = 540/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
20/6 = 20 × 5/6 × 5 = 100/30 - Subtract the two like fractions:
540/30 - 100/30 = 540 - 100/30 = 440/30 - After reducing the fraction, the answer is 44/3
- In mixed form: 142/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-40/6 90/10-20/6 90/5-20/12 90/5-60/6 90/15-20/6 90/5-20/18 90/25-20/6 90/5-20/30 90/35-20/6 90/5-20/42