Add 16/42 and 8/12
16/42 + 8/12 is 22/21.
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,
8/12 = 8 × 7/12 × 7 = 56/84 - Add the two like fractions:
32/84 + 56/84 = 32 + 56/84 = 88/84 - 88/84 simplified gives 22/21
- So, 16/42 + 8/12 = 22/21
In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+8/12 16/42+16/12 16/84+8/12 16/42+8/24 48/42+8/12 16/42+24/12 16/42+8/36 80/42+8/12 16/42+40/12 16/42+8/60 16/42+56/12 16/42+8/84