Download Tip Pecahan 1 1. 1/2 = one over two or one half 2. 1/4 = one over

MATEMATIK
NOMBOR
Tip Pecahan 1
1.  1/2 = one over two or one half
2.  1/4 = one over four or one quarter
3.  3/4 = three over four or three quarters
4.  Fraction with the numerator that is less than its denominator is called proper fraction.
5.  Improper fraction is a fraction with numerator that is same as or greater than its
denominator.
For example:
We write the improper fraction as 3/2.
We read it as three halves or three over two
6.  In solving problems involving fractions, use the following steps.
Step 1: Understanding the problem.
Step 2: Devising a plan.
Step 3: Implementing the plan.
Step 4: Looking back.
Example:
Puan Asiah bought 5 1/2 m of white cloth, 3 1/5 m of red cloth and 1 7/10 m of floral
cloth. How many metres of cloth did she buy altogether?
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Answer:
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Tip Pecahan 2
1.  There are two method of adding mixed numbers.
Method 1: Add the whole numbers and fractions separately.
Method 2: Change the mixed numbers to improper fractions first.
2. Subtraction of mixed numbers can be carried out using two methods.
Method 1: Subtract the whole numbers and fractions separately.
Method 2: Change mixed numbers to improper fractions first.
Tip Pecahan 3
1. To multiply any proper fractions by a whole number, we can use the following methods:
Use diagrams
Example:
1/2 of 4
= 1/2 x 4
=2
2. Multiply the whole number by the numerator
Example:
Cancellation
Example:
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3. Cancellation
Example:
Tip Pecahan 4
1. To change a proper fraction of tenths to a percentage, convert it to fraction of
hundredths.
2. To change a proper fraction to a percentage, we can also multiply it by 100%.
Example:
Convert 1/2 to a percentage.
3. To change a percentage to a decimal or vice versa, express it as a fraction of
hundredths. Then, convert it to decimal or percentage.
Example:
Convert 0.33 to a percentage.
0.33 = 33/100 = 33%