Subtract 70/54 from 90/5
1st number: 18 0/5, 2nd number: 1 16/54
90/5 - 70/54 is 451/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
90/5 = 90 × 54/5 × 54 = 4860/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
70/54 = 70 × 5/54 × 5 = 350/270 - Subtract the two like fractions:
4860/270 - 350/270 = 4860 - 350/270 = 4510/270 - After reducing the fraction, the answer is 451/27
- In mixed form: 1619/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-70/54 90/15-70/54 90/25-70/54 90/35-70/54