Aisha poured 0.64 litres of lime juice into a container. Express 0.64 as a fraction in its simplest form.
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Worked Solution
Step 1: Write 0.64 as a fraction over its place value.
0.64 has 2 decimal places, so the denominator is 100.
0.64 = 64/100
Step 2: Find the highest common factor (HCF) of 64 and 100.
Factors of 64: 1, 2, 4, 8, 16, 32, 64
Factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100
HCF = 4
Step 3: Divide both numerator and denominator by 4.
64 / 4 = 16
100 / 4 = 25
Step 4: 0.64 = 16/25 (simplest form — 16 and 25 share no common factor other than 1)
Correct answer: 16/25
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