Subtract 28/27 from 90/3
1st number: 30 0/3, 2nd number: 1 1/27
90/3 - 28/27 is 782/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 3 × 9 = 27,
90/3 = 90 × 9/3 × 9 = 810/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
28/27 = 28 × 1/27 × 1 = 28/27 - Subtract the two like fractions:
810/27 - 28/27 = 810 - 28/27 = 782/27 - In mixed form: 2826/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-56/27 90/6-28/27 90/3-28/54 90/3-84/27 90/9-28/27 90/3-28/81 90/15-28/27 90/21-28/27