Add 12/6 and 16/21
1st number: 2 0/6, 2nd number: 16/21
12/6 + 16/21 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
12/6 = 12 × 7/6 × 7 = 84/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
16/21 = 16 × 2/21 × 2 = 32/42 - Add the two like fractions:
84/42 + 32/42 = 84 + 32/42 = 116/42 - 116/42 simplified gives 58/21
- So, 12/6 + 16/21 = 58/21
In mixed form: 216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6+16/21 12/6+32/21 12/6+16/42 36/6+16/21 12/6+48/21 12/18+16/21 12/6+16/63 60/6+16/21 12/6+80/21 12/30+16/21 84/6+16/21 12/42+16/21