Subtract 45/36 from 63/18
1st number: 3 9/18, 2nd number: 1 9/36
63/18 - 45/36 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
63/18 = 63 × 2/18 × 2 = 126/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
45/36 = 45 × 1/36 × 1 = 45/36 - Subtract the two like fractions:
126/36 - 45/36 = 126 - 45/36 = 81/36 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18-90/36 63/36-45/36 63/18-45/72 63/54-45/36 63/90-45/36