Question

find the sum of 1/5 & 2/7​

Answer 1

Answer:

Step 1

Can you add yet? Nope! The denominators don't match. We need a common denominator. So next we take both denominators and multiply them. Next, take each numerator and multiply it by the denominator of the other term.

So, we multiply 1 by 7, and get 7, then we multiply 5 by 7 and get 35.

1/5 times 7

Now for the second term. You multiply 2 by 5, and get 10, then multiply 5 by 7 and get 35.

2/7 times 5

We now have a new problem, that looks like this:

7

35

+

10

35

Step 2

Since our denominators match, we can add the numerators.

7 + 10 = 17

That gives us the sum, which is

17

35

Answer 2

Answer:

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