Standard Mathematics Primary 4 Fractions

Mrs Tan combined 9/4 cups of flour from one container with 5/4 cups of flour from another container to bake kueh. What is the total amount of flour she has, expressed as a mixed number in simplest form?

A 3 1/2
B 14/8
C 3 2/4
D 3 1/4
Show Worked Solution

Worked Solution

Step 1: Both fractions already have the same denominator (4), so add the numerators directly: 9/4 + 5/4 = 14/4. Step 2: Check whether 14/4 can be simplified. gcd(14, 4) = 2, so divide top and bottom by 2: 14/4 = 7/2. Step 3: Convert 7/2 into a mixed number. 7 ÷ 2 = 3 remainder 1, so 7/2 = 3 1/2. Step 4: Confirm simplest form. 1/2 cannot be simplified further. Final answer: 3 1/2. Answer: 3 1/2

Correct answer: 3 1/2

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