The sim of 2/7 + 9/21 is
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Answer:
15/21 is your answer to your question
Explanation:
find the LCM of the denominator
LCM of 7 and 21 is 21 itself, so
2/7 × 3/3 = 6/7
9/21 × 1/1 = 9/21
6/21 + 9/21= 15/21
if you want you can do it to the simplest form that is 5/7
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