Advanced Mathematics Primary 4 Fractions

Ahmad is baking pandan cake. He has 3 1/5 kg of flour. He fills each scoop with exactly 1/5 kg of flour. First, express 3 1/5 as an improper fraction. Then find how many complete scoops Ahmad can fill.

A 16 scoops
B 15 scoops
C 17 scoops
D 8 scoops
Show Worked Solution

Worked Solution

Step 1: Convert the mixed number to an improper fraction. 3 1/5 = (3 × 5 + 1)/5 = (15 + 1)/5 = 16/5 Step 2: Divide by the size of one scoop. 16/5 ÷ 1/5 = 16/5 × 5/1 = 80/5 = 16 Ahmad can fill 16 complete scoops.

Correct answer: 16 scoops

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