Respuesta :

Answer:

0.71

Step-by-step explanation:

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Answer:

71%

Step-by-step explanation:

Simplify your fraction.

15/21 can turn into 5/7 when divided by 3.

Second, you'll divide 5/7.

You'll get a decimal like 0.71428 and so on, but you can just use the first 2 numbers.

71%