Subtract 81/84 from 14/8
1st number: 1 6/8, 2nd number: 81/84
14/8 - 81/84 is 11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 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 84 × 2 = 168,
81/84 = 81 × 2/84 × 2 = 162/168 - Subtract the two like fractions:
294/168 - 162/168 = 294 - 162/168 = 132/168 - After reducing the fraction, the answer is 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-81/84 14/16-81/84 42/8-81/84 14/24-81/84 70/8-81/84 14/40-81/84 98/8-81/84 14/56-81/84