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Answer:
Your answer would be 13/100
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Explanation:
In your question, you are trying to find 7/10 + (x) = 83/100.
There are many ways you can solve these types of problems, here is one way:
We would represent the missing number as "x"
To solve this problem, we would want to make the denominator the same, in this case, we would want to make the denominator for 7/10, 100.
To do this you would multiply the denominator by 10. You would also multiply the 7 by 10, since whatever you do in the bottom you would do to the top.
Once you've done that, you should have:
70/100 + (x) = 83/100
Then, you would want to subtract 70/100 from 83/100, since you want to get "x" by itself so it would end up as the value. When you subtract, you don't have to subtract the denominators, since they will stay the same value, the only thing you're subtracting is the numerators.
70/100 + x = 83/100
-70/100 -70/100
x = 13/100
Once you subtracted 83/100 by 70/100, you should get 13/100.
13/100 would be your FINAL answer.
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-Julie