Subtract 10/21 from 14/8
1st number: 1 6/8, 2nd number: 10/21
14/8 - 10/21 is 107/84.
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,
14/8 = 14 × 21/8 × 21 = 294/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
10/21 = 10 × 8/21 × 8 = 80/168 - Subtract the two like fractions:
294/168 - 80/168 = 294 - 80/168 = 214/168 - After reducing the fraction, the answer is 107/84
- In mixed form: 123/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-10/21 14/8-20/21 14/16-10/21 14/8-10/42 42/8-10/21 14/8-30/21 14/24-10/21 14/8-10/63 70/8-10/21 14/8-50/21 14/40-10/21 98/8-10/21 14/8-70/21 14/56-10/21