Subtract 3/12 from 90/4
1st number: 22 2/4, 2nd number: 3/12
90/4 - 3/12 is 89/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
90/4 = 90 × 3/4 × 3 = 270/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
3/12 = 3 × 1/12 × 1 = 3/12 - Subtract the two like fractions:
270/12 - 3/12 = 270 - 3/12 = 267/12 - After reducing the fraction, the answer is 89/4
- In mixed form: 221/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-6/12 90/8-3/12 90/4-3/24 90/4-9/12 90/12-3/12 90/4-3/36 90/4-15/12 90/20-3/12 90/4-3/60 90/4-21/12 90/28-3/12 90/4-3/84