Question

Erin received the following scores on her last four spelling tests.21\25, 82%, 0. 8, 17\20.
Which of these is Erin’s highest score?

Answer 1

Answer:

The highest score is the last one 17/20

Step-by-step explanation:

Step 1:  Convert all to percentage

21/25 -> 0.84 * 100 -> 84%

82%

0.8 * 100 -> 80%

17/20 -> 0.85 * 100 -> 85%

Answer:  The highest score is the last one 17/20

Answer 2

$\huge\boxed{\frac{17}{20}}$

We will convert each of the scores to a percentage.

$\frac{21}{25}*\frac{4}{4}\to\frac{21*4}{25*4}\to\frac{84}{100}\to84\%$

$82\%$

$0.8*100\to80\%$

$\boxed{\frac{17}{20}}*\frac{5}{5}\to\frac{85}{100}\to\boxed{85\%}$

So, the answer is the last option.