Subtract 42/32 from 90/54
1st number: 1 36/54, 2nd number: 1 10/32
90/54 - 42/32 is 17/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 32 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 54 × 16 = 864,
90/54 = 90 × 16/54 × 16 = 1440/864 - Likewise, for the 2nd fraction, since 32 × 27 = 864,
42/32 = 42 × 27/32 × 27 = 1134/864 - Subtract the two like fractions:
1440/864 - 1134/864 = 1440 - 1134/864 = 306/864 - After reducing the fraction, the answer is 17/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54-84/32 90/54-42/64 90/54-42/96