Subtract 54/27 from 90/75
1st number: 1 15/75, 2nd number: 2 0/27
90/75 - 54/27 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
90/75 = 90 × 9/75 × 9 = 810/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
54/27 = 54 × 25/27 × 25 = 1350/675 - Subtract the two like fractions:
810/675 - 1350/675 = 810 - 1350/675 = -540/675 - After reducing the fraction, the answer is -4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-54/81