Subtract 49/9 from 1/42
1st number: 1/42, 2nd number: 5 4/9
1/42 - 49/9 is -683/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
1/42 = 1 × 3/42 × 3 = 3/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
49/9 = 49 × 14/9 × 14 = 686/126 - Subtract the two like fractions:
3/126 - 686/126 = 3 - 686/126 = -683/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-49/9 1/42-98/9 1/84-49/9 1/42-49/18 3/42-49/9 1/42-49/27 5/42-49/9 1/42-49/45 7/42-49/9 1/42-49/63