Subtract 90/40 from 24/5
1st number: 4 4/5, 2nd number: 2 10/40
24/5 - 90/40 is 51/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
24/5 = 24 × 8/5 × 8 = 192/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
90/40 = 90 × 1/40 × 1 = 90/40 - Subtract the two like fractions:
192/40 - 90/40 = 192 - 90/40 = 102/40 - After reducing the fraction, the answer is 51/20
- In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/5-90/40 24/10-90/40 24/5-90/80 72/5-90/40 24/15-90/40 24/25-90/40 24/35-90/40