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35 votes
35 votes
Blank - 3/10 = 1/5 What is the blank number

User Roland Ewald
by
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1 Answer

13 votes
13 votes

Answer:

1/2

Explanation:

Let's consider the number we want is x

x-3/10=1/5

On both sides of the equation, if we substract (or add) a certain number, say 3/10, the equality relation still exists.

That is x-3/10+3/10=1/5+3/10

Then x=1/5+3/10

You see 1/5+3/10=2/10+3/10=1/2

So x=1/2

User Paul Woidke
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