Subtract 6/7 from 90/75
1st number: 1 15/75, 2nd number: 6/7
90/75 - 6/7 is 12/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
90/75 = 90 × 7/75 × 7 = 630/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
6/7 = 6 × 75/7 × 75 = 450/525 - Subtract the two like fractions:
630/525 - 450/525 = 630 - 450/525 = 180/525 - After reducing the fraction, the answer is 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-12/7 90/75-6/14 90/75-18/7 90/75-6/21 90/75-30/7 90/75-6/35 90/75-42/7 90/75-6/49