Subtract 30/18 from 63/75
1st number: 63/75, 2nd number: 1 12/18
63/75 - 30/18 is -62/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
63/75 = 63 × 6/75 × 6 = 378/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
30/18 = 30 × 25/18 × 25 = 750/450 - Subtract the two like fractions:
378/450 - 750/450 = 378 - 750/450 = -372/450 - After reducing the fraction, the answer is -62/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/75-60/18 63/75-30/36 63/75-90/18 63/75-30/54 63/75-30/90