Subtract 81/84 from 2/16
2/16 - 81/84 is -47/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
2/16 = 2 × 21/16 × 21 = 42/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
81/84 = 81 × 4/84 × 4 = 324/336 - Subtract the two like fractions:
42/336 - 324/336 = 42 - 324/336 = -282/336 - After reducing the fraction, the answer is -47/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/16-81/84 2/32-81/84 6/16-81/84 2/48-81/84 10/16-81/84 2/80-81/84 14/16-81/84