Renaldo will write 3/20 as a decimal. which of the following methods should he use?
1. multiply the fraction by 5/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
2.multiply the fraction by 1/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
3. multiply the fraction by 33.3/33.3 to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
4. multiply the fraction by 33.3 to get a numerator of 100 and then write the denominator as hundredths using a decimal point.

ANSWER

1. Multiply the fraction by 5/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.

EXPLANATION

Renaldo wants to write

as a decimal.

He needs a denominator of 100, so he can multiply by

to obtain:

This will be

He can now obtain the decimal equivalent as

The correct choice is option 1.

1. Multiply the fraction by 5/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.

Step-by-step explanation:

Renaldo must use a method that does not alter the value of the original fraction. This means that by multiplying the fraction by a number, the result obtained remains the same as the initial number.

Then the fraction must be multiplied by the same number in the denominator and the numerator. For example:

If we multiply the result is:

To write this fraction in decimal form, we move the comma 2 digits to the left in the following way:

15.0 --------> 0.15.

Then

The answer is Option 1.

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