Subtract 90/8 from 6/40
1st number: 6/40, 2nd number: 11 2/8
6/40 - 90/8 is -111/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
6/40 = 6 × 1/40 × 1 = 6/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Subtract the two like fractions:
6/40 - 450/40 = 6 - 450/40 = -444/40 - After reducing the fraction, the answer is -111/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40-90/8 6/80-90/8 6/40-90/16 18/40-90/8 6/40-90/24 30/40-90/8 6/40-90/40 42/40-90/8 6/40-90/56