# Answer

To solve this we will first calculate the total time per distance of Sarah and Eva and compare it.

Sarah :

3/75 + 5/125 + 12/300 + 17/425 =

Using the simplification:

3/75 simplifying by 3 we get: 1/25

5/125 simplifying by 5 : 1/25

12/300 simplifying by 12 : 1/25

17/425 simplifying by 17 : 1/25

so 3/75 + 5/125 + 12/300 + 17/425 = 1/25 + 1/25 + 1/25 + 1/25 = **4/25**

Eva :

2/52 + 7/182 + 10/260 + 20/520 =

Using the simplification:

2/52 simplifying by 2 we get: 1/26

7/182 simplifying by 7 : 1/26

10/260 simplifying by 10 : 1/26

20/520 simplifying by 20 : 1/26

so 2/52 + 7/182 + 10/260 + 20/520 = 1/26 + 1/26 + 1/26 + 1/26 = **4/26**

As a final result Eva got 4/26 which means 4 minuts for 26 meters.

And Sarah got 4/25 which means 4 minuts for 25 meters.

**Tha means Eva is faster then Sarah.**

#### Simplifying Ratios

In this video, you learn how to simplify ratios.