Subtract 18/14 from 28/4
1st number: 7 0/4, 2nd number: 1 4/14
28/4 - 18/14 is 40/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
28/4 = 28 × 7/4 × 7 = 196/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
18/14 = 18 × 2/14 × 2 = 36/28 - Subtract the two like fractions:
196/28 - 36/28 = 196 - 36/28 = 160/28 - After reducing the fraction, the answer is 40/7
- In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4-18/14 28/4-36/14 28/8-18/14 28/4-18/28 84/4-18/14 28/4-54/14 28/12-18/14 28/4-18/42 28/4-90/14 28/20-18/14 28/4-18/70 28/4-18/98