At a Geylang Serai kueh stall, a tray of ondeh-ondeh has 0.45 of its pieces sold. Express 0.45 as a fraction in its simplest form.
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Worked Solution
Step 1: 0.45 has TWO digits after the decimal point, so it represents hundredths. Write it as 45/100.\n
Step 2: Simplify by finding a common factor. Both 45 and 100 are divisible by 5.\n 45 ÷ 5 = 9\n 100 ÷ 5 = 20\n
Step 3: 45/100 = 9/20.\n
Step 4: Check if 9/20 can be simplified further. 9 = 3 × 3 and 20 = 2 × 2 × 5, so they share no common factor other than 1. 9/20 is in simplest form.
Answer: 9/20
Correct answer: 9/20
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