Subtract 36/3 from 8/42
1st number: 8/42, 2nd number: 12 0/3
8/42 - 36/3 is -248/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
8/42 = 8 × 1/42 × 1 = 8/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
36/3 = 36 × 14/3 × 14 = 504/42 - Subtract the two like fractions:
8/42 - 504/42 = 8 - 504/42 = -496/42 - After reducing the fraction, the answer is -248/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42-36/3 8/42-72/3 8/84-36/3 8/42-36/6 24/42-36/3 8/42-36/9 40/42-36/3 8/42-36/15 56/42-36/3 8/42-36/21