Subtract 42/18 from 40/2
1st number: 20 0/2, 2nd number: 2 6/18
40/2 - 42/18 is 53/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
40/2 = 40 × 9/2 × 9 = 360/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
42/18 = 42 × 1/18 × 1 = 42/18 - Subtract the two like fractions:
360/18 - 42/18 = 360 - 42/18 = 318/18 - After reducing the fraction, the answer is 53/3
- In mixed form: 172/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-42/18 40/2-84/18 40/4-42/18 40/2-42/36 40/6-42/18 40/2-42/54 40/10-42/18 40/2-42/90 40/14-42/18