klovetinsky klovetinsky

29-11-2014
Mathematics

contestada

Multiplying a number by 4/5 then dividing by 2/5 is the same as multiplying by what number?

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mom23wood mom23wood

30-11-2014

Would it be 33/10? If you are multiplying and then division you would use the inverse of the divided fraction and multiply. So you could invert 2/5 to 5/2 and add to 4/5. After finding the common denominator it would be adding 8/10 + 25/10 = 33/10.

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