Subtract 60/9 from 90/75
1st number: 1 15/75, 2nd number: 6 6/9
90/75 - 60/9 is -82/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
90/75 = 90 × 3/75 × 3 = 270/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
60/9 = 60 × 25/9 × 25 = 1500/225 - Subtract the two like fractions:
270/225 - 1500/225 = 270 - 1500/225 = -1230/225 - After reducing the fraction, the answer is -82/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-60/18 90/75-60/27 90/75-60/45 90/75-60/63