Add 21/42 and 6/9
21/42 + 6/9 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
21/42 = 21 × 3/42 × 3 = 63/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
6/9 = 6 × 14/9 × 14 = 84/126 - Add the two like fractions:
63/126 + 84/126 = 63 + 84/126 = 147/126 - 147/126 simplified gives 7/6
- So, 21/42 + 6/9 = 7/6
In mixed form: 11/6
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