Subtract 90/5 from 27/3
1st number: 9 0/3, 2nd number: 18 0/5
27/3 - 90/5 is -9/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
27/3 = 27 × 5/3 × 5 = 135/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
90/5 = 90 × 3/5 × 3 = 270/15 - Subtract the two like fractions:
135/15 - 270/15 = 135 - 270/15 = -135/15 - After reducing the fraction, the answer is -9/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/3-90/5 27/6-90/5 27/3-90/10 81/3-90/5 27/9-90/5 27/3-90/15 27/15-90/5 27/3-90/25 27/21-90/5 27/3-90/35