Subtract 14/36 from 18/63
18/63 - 14/36 is -13/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
14/36 = 14 × 7/36 × 7 = 98/252 - Subtract the two like fractions:
72/252 - 98/252 = 72 - 98/252 = -26/252 - After reducing the fraction, the answer is -13/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63-14/36 18/63-28/36 18/63-14/72 54/63-14/36 18/63-42/36 90/63-14/36 18/63-70/36 18/63-98/36