To add two fractions, combine the numerators when there is a common demominator (then you can also simplify).
In the question 7/8 + 7/8 ... there is a common denominator.
So you get 14/8
This can be simplified to 7/4
This can be simplified to 1 and 3/4
1 and 3/4 is your answer (which is 1.75 in decimal form).
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