Respuesta :
Answer:
[tex]Total\ flour\ sandra\ needs\ \frac{49}{8}\ cups.[/tex]
Step-by-step explanation:
As given
[tex]Sandra\ needs\ 2 \frac{3}{4}\ cups\ of\ flour\ for\ one\ kind\ of\ cookie\ and\ 3 \frac{3}{8}\ cups\ for\ another\ kind.[/tex]
i.e
[tex]Sandra\ needs\ \frac{11}{4}\ cups\ of\ flour\ for\ one\ kind\ of\ cookie\ and\ \frac{27}{8}\ cups\ for\ another\ kind.[/tex]
[tex]Total\ flour\ sandra\ needs = \frac{11}{4} + \frac{27}{8}[/tex]
L.C.M of (4,8) = 8
[tex]Total\ flour\ sandra\ needs = \frac{11\times 2 + 27}{8}[/tex]
[tex]Total\ flour\ sandra\ needs = \frac{22+ 27}{8}[/tex]
[tex]Total\ flour\ sandra\ needs = \frac{49}{8}\ cups[/tex]
[tex]Total\ flour\ sandra\ needs\ \frac{49}{8}\ cups.[/tex]
