Answer:
16/21
Explanation:
First, make them have a common denominator.
The least common factor of 7 and 3 is 21, so you can do
3/7 * 3/3 = 9/21
1/3 * 7/7 = 7/21
The new expression would be:
So the answer is 16/21
7/21+9/21=16/21
Hope it helps
Have a good day
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