Question

HOW TO DO THIS QUESTION PLEASE ​

Answer 1

34

Explanation:

`(2)/(5)*85`

Long way

1. multiply the two numerators
2. multiply the two denominators
3. simplify the new fractions

`(85)/(1)*(2)/(5) \\ \\ (170)/(5) \\ \\ =34`

short way

-can be simplified before mulitplying

1. factor out common factors in the numerator and denominator

`(85)/(1) *(2)/(5) \\ \\ (17)/(1)*(2)/(1) =34`

Think 85 and 5 as nickels. You need 20 nickels to make 100. Subtract 100 by 85 to get 15. You get 3 nickels and 17 nickels. 17 is the common factor. Multiply 17 by 2 to get your answer.