Subtract 12/18 from 45/5
1st number: 9 0/5, 2nd number: 12/18
45/5 - 12/18 is 25/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
45/5 = 45 × 18/5 × 18 = 810/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Subtract the two like fractions:
810/90 - 60/90 = 810 - 60/90 = 750/90 - After reducing the fraction, the answer is 25/3
- In mixed form: 81/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-12/18 45/5-24/18 45/10-12/18 45/5-12/36 45/5-36/18 45/15-12/18 45/5-12/54 45/5-60/18 45/25-12/18 45/5-12/90 45/5-84/18 45/35-12/18