Subtract 18/14 from 40/28
1st number: 1 12/28, 2nd number: 1 4/14
40/28 - 18/14 is 1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
40/28 = 40 × 1/28 × 1 = 40/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
18/14 = 18 × 2/14 × 2 = 36/28 - Subtract the two like fractions:
40/28 - 36/28 = 40 - 36/28 = 4/28 - After reducing the fraction, the answer is 1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-18/14 40/28-36/14 40/56-18/14 40/28-18/28 40/28-54/14 40/84-18/14 40/28-18/42 40/28-90/14 40/28-18/70 40/28-18/98