asas nombor_fraction
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8/7/2019 ASAS NOMBOR_FRACTION
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What is fraction?
` A number represent part of a whole.
` It is a ratio of two whole numbers (one wholenumber divided by another whole number.
` It consists of numerator (top of fraction) and
denominator (bottom of fraction).
` Example:
2/3
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What is meant by ³1´
within the context of fraction?
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` Proper fraction (pecahan wajar) Numerator is smaller than denominator
3/5
` Improper fraction (pecahan tak wajar) Numerator is larger than denominator 5/3
` Equivalent fraction (Pecahan setara) Two fractions have the same value.
3/6 is the same as ½
` Mixed Fraction (Nombor bercampur Consists of a whole number and a proper fraction.
2 ¾
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` Divide the numerator by the denominator.` Write down the whole number answer ` Then write down any remainder above the
denominator.
` Example: convert 11/4 to a mixed fraction
11÷ 4 = 2 with a remainder of 3
2 ¾
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` Multiply the whole number part by the denominator.
` Add that to the numerator.
` Then write the result on top of the denominator.
` Example: convert 2 ¾ to an improper fraction
Multiply 3 x 4 = 12
Addition 12 + 3 = 15
Then, write down the answer 17/5
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` Find the (greatest) common divisor of the
numerator and denominator, and divide both by it.
` E.g.,4/8 = ½ (common divisor = 4)
12/36 = 1/3 (common divisor = 3,4,6,12, choose the
greatest one)
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` Addition of fraction 3 + ¾ 3 + 2 ¾ ¾ + ¼
` Subtraction of fraction 3 - ¾ 3 - 2 ¾ ¾ - ¼
` Multiplication of fraction
3 x ¾ 3 x 2 ¾ ¾ x ¼
` Division of fraction
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Example: Arrange fractions in order.