Subtract 2/5 from 18/45
18/45 - 2/5 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
18/45 = 18 × 1/45 × 1 = 18/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
2/5 = 2 × 9/5 × 9 = 18/45 - Subtract the two like fractions:
18/45 - 18/45 = 18 - 18/45 = 0/45 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-2/5 18/45-4/5 18/90-2/5 18/45-2/10 54/45-2/5 18/45-6/5 18/45-2/15 90/45-2/5 18/45-10/5 18/45-2/25 18/45-14/5 18/45-2/35