Subtract 12/18 from 40/4
1st number: 10 0/4, 2nd number: 12/18
40/4 - 12/18 is 28/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
40/4 = 40 × 9/4 × 9 = 360/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
12/18 = 12 × 2/18 × 2 = 24/36 - Subtract the two like fractions:
360/36 - 24/36 = 360 - 24/36 = 336/36 - After reducing the fraction, the answer is 28/3
- In mixed form: 91/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-12/18 40/4-24/18 40/8-12/18 40/4-12/36 40/4-36/18 40/12-12/18 40/4-12/54 40/4-60/18 40/20-12/18 40/4-12/90 40/4-84/18 40/28-12/18