Praxis 5003 Practice Question
Which of the following expressions is one way to represent ¾ as a sum using only unit fractions?
Correct Answer: D
Rationale: Option D effectively represents ¾ as a sum of unit fractions. It can be broken down as 1/2 (which is 2/4) + 1/4, resulting in 3/4 when combined.
Option A sums to ¾ but includes non-unit fractions (1/4 appears twice), which disqualifies it from the requirement.
Option B, while it sums to ¾, utilizes fractions that are not unit fractions, specifically 2/8 and 1/4.
Option C also fails the unit fraction criterion, as 2/16 simplifies to 1/8, but still includes 5/8, which is not a unit fraction. Thus, only D satisfies both the requirement of unit fractions and accurately sums to ¾.
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