HOTS Mathematics Primary 4 Fractions

At Priya's birthday party, Group A ate 3/8 of a pizza and Group B ate 5/12 of the same pizza. The leftover pizza was shared equally among 3 teachers. What fraction of the whole pizza did each teacher receive?

A 5/72
B 5/24
C 19/72
D 1/5
Show Worked Solution

Worked Solution

Step 1: Add the fractions eaten by both groups. 3/8 + 5/12 LCD of 8 and 12 = 24 3/8 = 9/24 and 5/12 = 10/24 9/24 + 10/24 = 19/24 Step 2: Find the remaining fraction. 1 - 19/24 = 24/24 - 19/24 = 5/24 Step 3: Share the remainder equally among 3 teachers. 5/24 / 3 = 5/24 x 1/3 = 5/72 Final Answer: Each teacher received 5/72 of the whole pizza.

Correct answer: 5/72

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