During Chinese New Year, Ahmad ate 1/3 of a plate of pineapple tarts and his cousin Siti ate 1/4 of the same plate. What fraction of the plate of pineapple tarts did they eat altogether?
Show Worked Solution
Worked Solution
Step 1: Find the lowest common denominator (LCD) of 3 and 4.
The LCD of 3 and 4 is 12.
Step 2: Convert each fraction to twelfths.
1/3 = (1 × 4)/(3 × 4) = 4/12
1/4 = (1 × 3)/(4 × 3) = 3/12
Step 3: Add the fractions.
4/12 + 3/12 = 7/12
Ahmad and Siti ate 7/12 of the plate of pineapple tarts altogether.
Correct answer: 7/12
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