Subtract 15/6 from 90/3
1st number: 30 0/3, 2nd number: 2 3/6
90/3 - 15/6 is 55/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 6 is 6
Next, find the equivalent fraction of both fractional numbers with denominator 6 - For the 1st fraction, since 3 × 2 = 6,
90/3 = 90 × 2/3 × 2 = 180/6 - Likewise, for the 2nd fraction, since 6 × 1 = 6,
15/6 = 15 × 1/6 × 1 = 15/6 - Subtract the two like fractions:
180/6 - 15/6 = 180 - 15/6 = 165/6 - After reducing the fraction, the answer is 55/2
- In mixed form: 271/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-30/6 90/6-15/6 90/3-15/12 90/3-45/6 90/9-15/6 90/3-15/18 90/3-75/6 90/15-15/6 90/3-15/30 90/21-15/6 90/3-15/42