Add 42/2 and 80/12
1st number: 21 0/2, 2nd number: 6 8/12
42/2 + 80/12 is 83/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
42/2 = 42 × 6/2 × 6 = 252/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
80/12 = 80 × 1/12 × 1 = 80/12 - Add the two like fractions:
252/12 + 80/12 = 252 + 80/12 = 332/12 - 332/12 simplified gives 83/3
- So, 42/2 + 80/12 = 83/3
In mixed form: 272/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+80/12 42/4+80/12 42/2+80/24 42/6+80/12 42/2+80/36 42/10+80/12 42/2+80/60 42/14+80/12 42/2+80/84