Subtract 36/9 from 3/42
1st number: 3/42, 2nd number: 4 0/9
3/42 - 36/9 is -55/14.
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,
3/42 = 3 × 3/42 × 3 = 9/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
36/9 = 36 × 14/9 × 14 = 504/126 - Subtract the two like fractions:
9/126 - 504/126 = 9 - 504/126 = -495/126 - After reducing the fraction, the answer is -55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42-36/9 3/42-72/9 3/84-36/9 3/42-36/18 9/42-36/9 3/42-36/27 15/42-36/9 3/42-36/45 21/42-36/9 3/42-36/63