Subtract 56/42 from 6/18
1st number: 6/18, 2nd number: 1 14/42
6/18 - 56/42 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
6/18 = 6 × 7/18 × 7 = 42/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
56/42 = 56 × 3/42 × 3 = 168/126 - Subtract the two like fractions:
42/126 - 168/126 = 42 - 168/126 = -126/126 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18-56/42 6/36-56/42 6/18-56/84 6/54-56/42 30/18-56/42 6/90-56/42 42/18-56/42