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Rational Number

Any number that can be expressed as a ratio of two integers. Example; 6 can be expressed as 6/1, and 0.5 as 1/2.

Irrational Number

A number that cannot be written as a fraction with a numerator and a denominator that are integers. The decimal representation of a rational number either ends or repeats.

reciprocal

One of two numbers whose product is 1; it is also called multiplicative inverse.

relatively prime

When the GCF of two numbers is one

numerator

the top part of a fraction

denomenator

the bottom number in a fraction

Repeating Decimal

A decimal in which one or more digits repeat infinitely. Example: 0.757575...

Terminating Decimal

A decimal number that ends or terminates. Example: 6.75

least common denomenator

the least common multiple of the denomenator

Divide Fractions

find reciprocal of 2nd number and multiply

Square

P=s+s+s+s

Square Root

when multiplying a number by itself to get a square number

Perfect Square

the number that forms when two same numbers are multiplied together

Principal Square Root

the nonnegative square root of a number

The answer would be 0

What if a square root is 0?

The answer would be 1

What if a square root is 1?