Subtract 6/4 from 18/28
1st number: 18/28, 2nd number: 1 2/4
18/28 - 6/4 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
18/28 = 18 × 1/28 × 1 = 18/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
6/4 = 6 × 7/4 × 7 = 42/28 - Subtract the two like fractions:
18/28 - 42/28 = 18 - 42/28 = -24/28 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-6/4 18/28-12/4 18/56-6/4 18/28-6/8 54/28-6/4 18/28-18/4 18/84-6/4 18/28-6/12 90/28-6/4 18/28-30/4 18/28-6/20 18/28-42/4 18/28-6/28