Subtract 9/42 from 80/4
1st number: 20 0/4, 2nd number: 9/42
80/4 - 9/42 is 277/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
80/4 = 80 × 21/4 × 21 = 1680/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Subtract the two like fractions:
1680/84 - 18/84 = 1680 - 18/84 = 1662/84 - After reducing the fraction, the answer is 277/14
- In mixed form: 1911/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-18/42 80/8-9/42 80/4-9/84 80/4-27/42 80/12-9/42 80/4-45/42 80/20-9/42 80/4-63/42 80/28-9/42