Middle School

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Keira divided 123.52 by 3.2 and got 38.6. Without using a calculator, how could she check to determine if her answer is reasonable?

Answer :

The solution to the quotient of 123.52 by 3.2 is 38.6

Decimals and fractions

Given the expression solved by Keira as;

123.52/3.2

Convert the decimals to fractions

123.52 = 12352/100

3.2 = 32/10

Substitute

123.52/3.2 = 12352/100÷ 32/10
123.52/3.2 = 12352/100 × 10/32

123.52/3.2 = 12352/320
123.52/3.2 = 38.6

Hence the solution to the quotient of 123.52 by 3.2 is 38.6

Learn more on division here: https://brainly.com/question/4721701

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Rewritten by : Barada

Multiplying 39.6 and 3.2