Subtract 18/84 from 81/16
1st number: 5 1/16, 2nd number: 18/84
81/16 - 18/84 is 543/112.
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,
81/16 = 81 × 21/16 × 21 = 1701/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
18/84 = 18 × 4/84 × 4 = 72/336 - Subtract the two like fractions:
1701/336 - 72/336 = 1701 - 72/336 = 1629/336 - After reducing the fraction, the answer is 543/112
- In mixed form: 495/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16-36/84 81/32-18/84 81/16-54/84 81/48-18/84 81/16-90/84 81/80-18/84