Subtract 18/5 from 20/2
1st number: 10 0/2, 2nd number: 3 3/5
20/2 - 18/5 is 32/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
20/2 = 20 × 5/2 × 5 = 100/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
18/5 = 18 × 2/5 × 2 = 36/10 - Subtract the two like fractions:
100/10 - 36/10 = 100 - 36/10 = 64/10 - After reducing the fraction, the answer is 32/5
- In mixed form: 62/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-18/5 20/2-36/5 20/4-18/5 20/2-18/10 60/2-18/5 20/2-54/5 20/6-18/5 20/2-18/15 20/2-90/5 20/10-18/5 20/2-18/25 20/14-18/5 20/2-18/35