Square Roots of Rational Numbers

Square Roots of Rational Numbers

Square Root of a Fraction

• reduce fraction to lowest terms

• try to square root the numberator

• try to square root the denominator

• if you can square root both ... it is a perfect square

Square Root a Decimal

• change the decimal to a fraction

• repeat steps for fraction square rooting

• or... use a calculator

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Multiple Select

is

 $\frac{4}{20}$  a perfect square number?

• yes

• no

Multiple Choice

The square root of 0.81 is?

• 0.9

• 0.09

• 9

• 90