Subtract 10/90 from 81/3
1st number: 27 0/3, 2nd number: 10/90
81/3 - 10/90 is 242/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
81/3 = 81 × 30/3 × 30 = 2430/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Subtract the two like fractions:
2430/90 - 10/90 = 2430 - 10/90 = 2420/90 - After reducing the fraction, the answer is 242/9
- In mixed form: 268/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3-20/90 81/6-10/90 81/3-30/90 81/9-10/90 81/3-50/90 81/15-10/90 81/3-70/90 81/21-10/90