# How do you solve #a/10=2/5#?

So

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To solve ( \frac{a}{10} = \frac{2}{5} ), you can cross multiply. Multiply 5 to both sides of the equation to eliminate the denominator. Then, solve for ( a ). So, ( a = \frac{2 \times 10}{5} ). Simplify to get ( a = 4 ).

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