Answer:
17/25
Explanation:
We assume you want the sum ...
4/50 + 3/5
= (2·2)/(25·2) + (3·5)/(5·5)
= 2/25 + 15/25
= 17/25
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Comment on the question
We prefer math symbols:
4/50 + 3/5 = ??
or, if you can't manage that, proper English:
four fiftieths plus three fifths.