Subtract 90/42 from 6/3
1st number: 2 0/3, 2nd number: 2 6/42
6/3 - 90/42 is -1/7.
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,
6/3 = 6 × 14/3 × 14 = 84/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42 - Subtract the two like fractions:
84/42 - 90/42 = 84 - 90/42 = -6/42 - After reducing the fraction, the answer is -1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/3-90/42 6/3-90/84 18/3-90/42 6/9-90/42 30/3-90/42 6/15-90/42 42/3-90/42 6/21-90/42