Subtract 63/84 from 30/36
30/36 - 63/84 is 1/12.
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,
30/36 = 30 × 7/36 × 7 = 210/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Subtract the two like fractions:
210/252 - 189/252 = 210 - 189/252 = 21/252 - After reducing the fraction, the answer is 1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36-63/84 30/72-63/84 90/36-63/84