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anonymous
 5 years ago
(2/5 +1/2=???? can you help? I got 9/10
anonymous
 5 years ago
(2/5 +1/2=???? can you help? I got 9/10

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mathteacher1729
 5 years ago
Best ResponseYou've already chosen the best response.0Here you have to find the common denominator. The denominator of 2/5 is 5 The denominator of 1/2 is 2 If we multiply: \[\frac{2}{5}\frac{2}{2}\] and \[\frac{1}{2}\frac{5}{5}\] THE TRICK HERE IS IN TWO PARTS 1) 2/2 and 5/5 are just fancy ways of representing the number 1. 2) One times any number does not change the number. The benefit is that we now have: \[\frac{4}{10}+\frac{5}{10}=\frac{4+5}{10}\] So... check your answer... :)
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