Subtract 90/70 from 8/75
1st number: 8/75, 2nd number: 1 20/70
8/75 - 90/70 is -619/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
8/75 = 8 × 14/75 × 14 = 112/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
90/70 = 90 × 15/70 × 15 = 1350/1050 - Subtract the two like fractions:
112/1050 - 1350/1050 = 112 - 1350/1050 = -1238/1050 - After reducing the fraction, the answer is -619/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/75-90/70 24/75-90/70 40/75-90/70 56/75-90/70