Subtract 18/28 from 12/8
1st number: 1 4/8, 2nd number: 18/28
12/8 - 18/28 is 6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
12/8 = 12 × 7/8 × 7 = 84/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
18/28 = 18 × 2/28 × 2 = 36/56 - Subtract the two like fractions:
84/56 - 36/56 = 84 - 36/56 = 48/56 - 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: 24/8-18/28 12/8-36/28 12/16-18/28 12/8-18/56 36/8-18/28 12/8-54/28 12/24-18/28 12/8-18/84 60/8-18/28 12/8-90/28 12/40-18/28 84/8-18/28 12/56-18/28