Subtract 90/8 from 18/75
1st number: 18/75, 2nd number: 11 2/8
18/75 - 90/8 is -1101/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 8 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
18/75 = 18 × 8/75 × 8 = 144/600 - Likewise, for the 2nd fraction, since 8 × 75 = 600,
90/8 = 90 × 75/8 × 75 = 6750/600 - Subtract the two like fractions:
144/600 - 6750/600 = 144 - 6750/600 = -6606/600 - After reducing the fraction, the answer is -1101/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/75-90/8 18/75-90/16 54/75-90/8 18/75-90/24 90/75-90/8 18/75-90/40 18/75-90/56