Subtract 27/16 from 45/84
1st number: 45/84, 2nd number: 1 11/16
45/84 - 27/16 is -129/112.
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,
45/84 = 45 × 4/84 × 4 = 180/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
27/16 = 27 × 21/16 × 21 = 567/336 - Subtract the two like fractions:
180/336 - 567/336 = 180 - 567/336 = -387/336 - After reducing the fraction, the answer is -129/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84-27/16 45/84-54/16 45/84-27/32 45/84-81/16 45/84-27/48 45/84-27/80