Subtract 40/16 from 2/84
1st number: 2/84, 2nd number: 2 8/16
2/84 - 40/16 is -52/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
2/84 = 2 × 4/84 × 4 = 8/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
40/16 = 40 × 21/16 × 21 = 840/336 - Subtract the two like fractions:
8/336 - 840/336 = 8 - 840/336 = -832/336 - After reducing the fraction, the answer is -52/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84-40/16 2/84-80/16 2/84-40/32 6/84-40/16 2/84-40/48 10/84-40/16 2/84-40/80 14/84-40/16