3 years ago

Write the rational number 2.13 repeating as the ratio of two integers

1 answer:

zmey [24]3 years ago

6 0

Let

x = 2.131313... Equation 1

Multiply both sides by 100 to get:

100x = 213.131313... Equation 2

Subtract equation 1 from equation 2.

99x = 211

x = 211/99

Answer: 211/99

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