Subtract 42/18 from 63/4
1st number: 15 3/4, 2nd number: 2 6/18
63/4 - 42/18 is 161/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
63/4 = 63 × 9/4 × 9 = 567/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
42/18 = 42 × 2/18 × 2 = 84/36 - Subtract the two like fractions:
567/36 - 84/36 = 567 - 84/36 = 483/36 - After reducing the fraction, the answer is 161/12
- In mixed form: 135/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4-84/18 63/8-42/18 63/4-42/36 63/12-42/18 63/4-42/54 63/20-42/18 63/4-42/90 63/28-42/18