Subtract 14/21 from 5/8
5/8 - 14/21 is -1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
5/8 = 5 × 21/8 × 21 = 105/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
14/21 = 14 × 8/21 × 8 = 112/168 - Subtract the two like fractions:
105/168 - 112/168 = 105 - 112/168 = -7/168 - After reducing the fraction, the answer is -1/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8-14/21 5/8-28/21 5/16-14/21 5/8-14/42 15/8-14/21 5/8-42/21 5/24-14/21 5/8-14/63 25/8-14/21 5/8-70/21 5/40-14/21 35/8-14/21 5/8-98/21 5/56-14/21