Subtract 80/4 from 42/3
1st number: 14 0/3, 2nd number: 20 0/4
42/3 - 80/4 is -6/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
42/3 = 42 × 4/3 × 4 = 168/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
80/4 = 80 × 3/4 × 3 = 240/12 - Subtract the two like fractions:
168/12 - 240/12 = 168 - 240/12 = -72/12 - After reducing the fraction, the answer is -6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3-80/4 42/6-80/4 42/3-80/8 42/9-80/4 42/3-80/12 42/15-80/4 42/3-80/20 42/21-80/4 42/3-80/28