Subtract 90/40 from 56/8
1st number: 7 0/8, 2nd number: 2 10/40
56/8 - 90/40 is 19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
56/8 = 56 × 5/8 × 5 = 280/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
90/40 = 90 × 1/40 × 1 = 90/40 - Subtract the two like fractions:
280/40 - 90/40 = 280 - 90/40 = 190/40 - After reducing the fraction, the answer is 19/4
- In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16-90/40 56/8-90/80 56/24-90/40 56/40-90/40