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