Subtract 10/45 from 90/54
1st number: 1 36/54, 2nd number: 10/45
90/54 - 10/45 is 13/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 45 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Likewise, for the 2nd fraction, since 45 × 6 = 270,
10/45 = 10 × 6/45 × 6 = 60/270 - Subtract the two like fractions:
450/270 - 60/270 = 450 - 60/270 = 390/270 - After reducing the fraction, the answer is 13/9
- In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54-20/45 90/54-10/90 90/54-30/45 90/54-50/45 90/54-70/45