Subtract 80/6 from 1/42
1st number: 1/42, 2nd number: 13 2/6
1/42 - 80/6 is -559/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
1/42 = 1 × 1/42 × 1 = 1/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
80/6 = 80 × 7/6 × 7 = 560/42 - Subtract the two like fractions:
1/42 - 560/42 = 1 - 560/42 = -559/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-80/6 1/84-80/6 1/42-80/12 3/42-80/6 1/42-80/18 5/42-80/6 1/42-80/30 7/42-80/6 1/42-80/42