Subtract 72/5 from 90/6
1st number: 15 0/6, 2nd number: 14 2/5
90/6 - 72/5 is 3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
90/6 = 90 × 5/6 × 5 = 450/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
72/5 = 72 × 6/5 × 6 = 432/30 - Subtract the two like fractions:
450/30 - 432/30 = 450 - 432/30 = 18/30 - After reducing the fraction, the answer is 3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-72/5 90/6-72/10 90/18-72/5 90/6-72/15 90/30-72/5 90/6-72/25 90/42-72/5 90/6-72/35