Subtract 6/42 from 18/3
1st number: 6 0/3, 2nd number: 6/42
18/3 - 6/42 is 41/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
18/3 = 18 × 14/3 × 14 = 252/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
6/42 = 6 × 1/42 × 1 = 6/42 - Subtract the two like fractions:
252/42 - 6/42 = 252 - 6/42 = 246/42 - After reducing the fraction, the answer is 41/7
- In mixed form: 56/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/3-6/42 18/3-12/42 18/6-6/42 18/3-6/84 54/3-6/42 18/3-18/42 18/9-6/42 90/3-6/42 18/3-30/42 18/15-6/42 18/21-6/42