[tex]\text { Total = } 5 \times \dfrac{3}{4} = \dfrac{15}{4} [/tex]
Find the number of times he need to fill the measuring cup:
[tex] \dfrac{15}{4} \div \dfrac{1}{4} = \dfrac{15}{4} \times \dfrac{4}{1} = 15[/tex]
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Answer: He needs to fill the measuring cup 15 times.
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