Subtract 18/84 from 45/36
1st number: 1 9/36, 2nd number: 18/84
45/36 - 18/84 is 29/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
45/36 = 45 × 7/36 × 7 = 315/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Subtract the two like fractions:
315/252 - 54/252 = 315 - 54/252 = 261/252 - After reducing the fraction, the answer is 29/28
- In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36-18/84 45/36-36/84 45/72-18/84 45/36-54/84 45/36-90/84