Foundation Mathematics Primary 3 Fractions

Priya had 3/4 of a bottle of juice. She drank 1/3 of a bottle. How much juice was left?

A 2/7
B 5/12
C 8/12
D 2/12
Show Worked Solution

Worked Solution

Step 1: Find the LCD of 4 and 3. LCD = 12. Step 2: Convert 3/4 to twelfths: 3×3 / 4×3 = 9/12. Step 3: Convert 1/3 to twelfths: 1×4 / 3×4 = 4/12. Step 4: Subtract: 9/12 − 4/12 = 5/12. Final: 5/12 of the bottle was left.

Correct answer: 5/12

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