Subtract 24/5 from 90/8
1st number: 11 2/8, 2nd number: 4 4/5
90/8 - 24/5 is 129/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
24/5 = 24 × 8/5 × 8 = 192/40 - Subtract the two like fractions:
450/40 - 192/40 = 450 - 192/40 = 258/40 - After reducing the fraction, the answer is 129/20
- In mixed form: 69/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-48/5 90/16-24/5 90/8-24/10 90/8-72/5 90/24-24/5 90/8-24/15 90/40-24/5 90/8-24/25 90/56-24/5 90/8-24/35