Subtract 90/45 from 60/18
1st number: 3 6/18, 2nd number: 2 0/45
60/18 - 90/45 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
60/18 = 60 × 5/18 × 5 = 300/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Subtract the two like fractions:
300/90 - 180/90 = 300 - 180/90 = 120/90 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36-90/45 60/54-90/45 60/90-90/45