Dissimilar fraction change to similar fraction?

I assume you mean dissimilar fractions.

Example.

4/5 + 1/2

We need common denominators in fraction addition/subtraction. Use form of 1 to convert fractions. Common denominator here is 10.

2*4/2*5 = 8/10

5*1/5*2 = 5/10

8/10 + 5/10 = 13/10

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