Subtract 14/18 from 30/63
30/63 - 14/18 is -19/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
30/63 = 30 × 2/63 × 2 = 60/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Subtract the two like fractions:
60/126 - 98/126 = 60 - 98/126 = -38/126 - After reducing the fraction, the answer is -19/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63-14/18 30/63-28/18 30/63-14/36 90/63-14/18 30/63-42/18 30/63-14/54 30/63-70/18 30/63-14/90 30/63-98/18