Subtract 3/12 from 90/6
1st number: 15 0/6, 2nd number: 3/12
90/6 - 3/12 is 59/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
90/6 = 90 × 2/6 × 2 = 180/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
3/12 = 3 × 1/12 × 1 = 3/12 - Subtract the two like fractions:
180/12 - 3/12 = 180 - 3/12 = 177/12 - After reducing the fraction, the answer is 59/4
- In mixed form: 143/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6-6/12 90/12-3/12 90/6-3/24 90/6-9/12 90/18-3/12 90/6-3/36 90/6-15/12 90/30-3/12 90/6-3/60 90/6-21/12 90/42-3/12 90/6-3/84