[tex]\text { One batch = } 1\dfrac{3}{4} \text { cups}[/tex]
[tex]2 \dfrac{1}{2} \text { batches = } 1\dfrac{3}{4} \times 2 \dfrac{1}{2} \text { cups}[/tex]
[tex]2 \dfrac{1}{2} \text { batches = } \dfrac{7}{4} \times \dfrac{5}{2} \text { cups}[/tex]
[tex]2 \dfrac{1}{2} \text { batches = } 4\dfrac{3}{8} \text { cups}[/tex]