Subtract 14/8 from 7/28
1st number: 7/28, 2nd number: 1 6/8
7/28 - 14/8 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
7/28 = 7 × 2/28 × 2 = 14/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
14/8 = 14 × 7/8 × 7 = 98/56 - Subtract the two like fractions:
14/56 - 98/56 = 14 - 98/56 = -84/56 - After reducing the fraction, the answer is -3/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-14/8 7/28-28/8 7/56-14/8 7/28-14/16 21/28-14/8 7/28-42/8 7/84-14/8 7/28-14/24 35/28-14/8 7/28-70/8 7/28-14/40 49/28-14/8 7/28-98/8 7/28-14/56