Answer:
Givens:
To know if the have enough flour, we just need to sum both amounts, but before that, we need to transform all mixed numbers into fractions
[tex]2\frac{1}{3}= \frac{7}{3}[/tex]
[tex]1\frac{3}{4}=\frac{7}{4}[/tex]
Now, we sum
[tex]\frac{7}{3}+\frac{7}{4}=\frac{28+21}{12}=\frac{49}{12}\approx 4.08[/tex]
Therefore, the just have enough flour to do their recipes, because they need 4.08 c of flour approximately, and they have 4 c of flour.