Subtract 28/6 from 90/5
1st number: 18 0/5, 2nd number: 4 4/6
90/5 - 28/6 is 40/3.
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,
28/6 = 28 × 5/6 × 5 = 140/30 - Subtract the two like fractions:
540/30 - 140/30 = 540 - 140/30 = 400/30 - After reducing the fraction, the answer is 40/3
- In mixed form: 131/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-56/6 90/10-28/6 90/5-28/12 90/5-84/6 90/15-28/6 90/5-28/18 90/25-28/6 90/5-28/30 90/35-28/6 90/5-28/42