Subtract 20/12 from 90/32
1st number: 2 26/32, 2nd number: 1 8/12
90/32 - 20/12 is 55/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 12 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 32 × 3 = 96,
90/32 = 90 × 3/32 × 3 = 270/96 - Likewise, for the 2nd fraction, since 12 × 8 = 96,
20/12 = 20 × 8/12 × 8 = 160/96 - Subtract the two like fractions:
270/96 - 160/96 = 270 - 160/96 = 110/96 - After reducing the fraction, the answer is 55/48
- In mixed form: 17/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/32-40/12 90/64-20/12 90/32-20/24 90/32-60/12 90/96-20/12 90/32-20/36 90/32-20/60 90/32-20/84