Subtract 42/63 from 14/18
14/18 - 42/63 is 1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
42/63 = 42 × 2/63 × 2 = 84/126 - Subtract the two like fractions:
98/126 - 84/126 = 98 - 84/126 = 14/126 - After reducing the fraction, the answer is 1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18-42/63 14/18-84/63 14/36-42/63 42/18-42/63 14/54-42/63 70/18-42/63 14/90-42/63 98/18-42/63