Subtract 9/6 from 18/28
1st number: 18/28, 2nd number: 1 3/6
18/28 - 9/6 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
9/6 = 9 × 14/6 × 14 = 126/84 - Subtract the two like fractions:
54/84 - 126/84 = 54 - 126/84 = -72/84 - 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: 36/28-9/6 18/28-18/6 18/56-9/6 18/28-9/12 54/28-9/6 18/28-27/6 18/84-9/6 18/28-9/18 90/28-9/6 18/28-45/6 18/28-9/30 18/28-63/6 18/28-9/42