Add 21/6 and 42/9
1st number: 3 3/6, 2nd number: 4 6/9
21/6 + 42/9 is 49/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
42/9 = 42 × 2/9 × 2 = 84/18 - Add the two like fractions:
63/18 + 84/18 = 63 + 84/18 = 147/18 - 147/18 simplified gives 49/6
- So, 21/6 + 42/9 = 49/6
In mixed form: 81/6
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