Subtract 42/14 from 10/18
1st number: 10/18, 2nd number: 3 0/14
10/18 - 42/14 is -22/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
10/18 = 10 × 7/18 × 7 = 70/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126 - Subtract the two like fractions:
70/126 - 378/126 = 70 - 378/126 = -308/126 - After reducing the fraction, the answer is -22/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18-42/14 10/18-84/14 10/36-42/14 10/18-42/28 30/18-42/14 10/54-42/14 50/18-42/14 10/90-42/14 10/18-42/70 70/18-42/14 10/18-42/98