Subtract 4/90 from 40/5
1st number: 8 0/5, 2nd number: 4/90
40/5 - 4/90 is 358/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Subtract the two like fractions:
720/90 - 4/90 = 720 - 4/90 = 716/90 - After reducing the fraction, the answer is 358/45
- In mixed form: 743/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-4/90 40/5-8/90 40/10-4/90 40/5-12/90 40/15-4/90 40/5-20/90 40/25-4/90 40/5-28/90 40/35-4/90