Subtract 49/18 from 50/42
1st number: 1 8/42, 2nd number: 2 13/18
50/42 - 49/18 is -193/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
50/42 = 50 × 3/42 × 3 = 150/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
49/18 = 49 × 7/18 × 7 = 343/126 - Subtract the two like fractions:
150/126 - 343/126 = 150 - 343/126 = -193/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-98/18 50/84-49/18 50/42-49/36 50/42-49/54 50/42-49/90