Rational vs. Irrational numbers

Rational vs. Irrational numbers

Sometimes, it's hard to tell the difference between rational and irrational numbers. Rational numbers can be written as "fraction", "repeating decimals" or "terminating decimal". Irrational numbers are the opposite of that. In this session, we will learn how to identify rational and irrational numbers.
Basic concepts: Comparing and ordering numbers, Understanding the number systems,
Related concepts: Square and square roots,

Lessons

  • 1.
    Identify rational and irrational numbers.
    1.45667
    7 \sqrt{7}
    3.56565656…
    -2.393399333999…

  • 2.
    Order the following numbers on the number line.
    a)
    13 \sqrt{13}
    π \pi
    60 \sqrt{60}
    325\sqrt{25}
    -0.20\sqrt{0.20}


    Rational vs. Irrational numbers

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13.
Number Systems
13.1
Understanding the number systems
13.2
Prime factorisation
13.3
Highest common factors (HCF)
13.4
Least Common Multiple (LCM)
13.5
Rational vs. Irrational numbers
13.6
Converting repeating decimals to fractions
GCE O-Level Maths
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