Subtract 20/12 from 90/16
1st number: 5 10/16, 2nd number: 1 8/12
90/16 - 20/12 is 95/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
90/16 = 90 × 3/16 × 3 = 270/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Subtract the two like fractions:
270/48 - 80/48 = 270 - 80/48 = 190/48 - After reducing the fraction, the answer is 95/24
- In mixed form: 323/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16-40/12 90/32-20/12 90/16-20/24 90/16-60/12 90/48-20/12 90/16-20/36 90/80-20/12 90/16-20/60 90/16-20/84