Subtract 3/42 from 80/2
1st number: 40 0/2, 2nd number: 3/42
80/2 - 3/42 is 559/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
80/2 = 80 × 21/2 × 21 = 1680/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
3/42 = 3 × 1/42 × 1 = 3/42 - Subtract the two like fractions:
1680/42 - 3/42 = 1680 - 3/42 = 1677/42 - After reducing the fraction, the answer is 559/14
- In mixed form: 3913/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-6/42 80/4-3/42 80/2-3/84 80/2-9/42 80/6-3/42 80/2-15/42 80/10-3/42 80/2-21/42 80/14-3/42