Add 16/42 and 84/12
1st number: 16/42, 2nd number: 7 0/12
16/42 + 84/12 is 155/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
16/42 = 16 × 2/42 × 2 = 32/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
84/12 = 84 × 7/12 × 7 = 588/84 - Add the two like fractions:
32/84 + 588/84 = 32 + 588/84 = 620/84 - 620/84 simplified gives 155/21
- So, 16/42 + 84/12 = 155/21
In mixed form: 78/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+84/12 16/84+84/12 16/42+84/24 48/42+84/12 16/42+84/36 80/42+84/12 16/42+84/60