Subtract 12/28 from 18/4
1st number: 4 2/4, 2nd number: 12/28
18/4 - 12/28 is 57/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
12/28 = 12 × 1/28 × 1 = 12/28 - Subtract the two like fractions:
126/28 - 12/28 = 126 - 12/28 = 114/28 - After reducing the fraction, the answer is 57/14
- In mixed form: 41/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-12/28 18/4-24/28 18/8-12/28 18/4-12/56 54/4-12/28 18/4-36/28 18/12-12/28 18/4-12/84 90/4-12/28 18/4-60/28 18/20-12/28 18/4-84/28 18/28-12/28