Subtract 32/42 from 1/3
1/3 - 32/42 is -3/7.
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,
1/3 = 1 × 14/3 × 14 = 14/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
32/42 = 32 × 1/42 × 1 = 32/42 - Subtract the two like fractions:
14/42 - 32/42 = 14 - 32/42 = -18/42 - After reducing the fraction, the answer is -3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3-32/42 1/3-64/42 1/6-32/42 1/3-32/84 1/3-96/42 1/9-32/42 5/3-32/42 1/15-32/42 7/3-32/42 1/21-32/42