Subtract 18/3 from 40/14
1st number: 2 12/14, 2nd number: 6 0/3
40/14 - 18/3 is -22/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
40/14 = 40 × 3/14 × 3 = 120/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
18/3 = 18 × 14/3 × 14 = 252/42 - Subtract the two like fractions:
120/42 - 252/42 = 120 - 252/42 = -132/42 - After reducing the fraction, the answer is -22/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-18/3 40/14-36/3 40/28-18/3 40/14-18/6 40/14-54/3 40/42-18/3 40/14-18/9 40/14-90/3 40/70-18/3 40/14-18/15 40/98-18/3 40/14-18/21