Subtract 7/27 from 90/20
1st number: 4 10/20, 2nd number: 7/27
90/20 - 7/27 is 229/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
90/20 = 90 × 27/20 × 27 = 2430/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
7/27 = 7 × 20/27 × 20 = 140/540 - Subtract the two like fractions:
2430/540 - 140/540 = 2430 - 140/540 = 2290/540 - After reducing the fraction, the answer is 229/54
- In mixed form: 413/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-14/27 90/40-7/27 90/20-7/54 90/20-21/27 90/60-7/27 90/20-7/81 90/20-35/27 90/20-49/27