Question

Karina is baking bread. She buys a small bag of flour that contains 2 2/3 cups of flour. The recipe calls for 2 5/7 cups of flour. Does she have enough flour to bake the bread? Explain how she can compare the fractions to know for sure.

Answer 1

Answer:

no

Step-by-step explanation:

given above about finding greater fraction

x means multiple

Answer 2

Given,

Karina brought the flour of $2\frac{2}{3}$ cups.

Now convert the mixed fraction.

$2\frac{2}{3} =\frac{3\times 2+2}{3}$

$2\frac{2}{3}=\frac{8}{3}$

To do the recipe she needs the flour of $2\frac{5}{7}$ cups

$2\frac{5}{7} =\frac{7\times 2+5}{7}$

$2\frac{5}{7} =\frac{19}{7}$

To compare the fractions the denominators should be equal.

$\frac{8}{3} \times \frac{7}{7} =\frac{56}{21}$

$\frac{19}{7} \times \frac{3}{3} =\frac{57}{21}$

Compare the fractions

$\frac{57}{21}$ is greater than $\frac{56}{21}$

The quantity of flour which is required to prepare the bread is greater than the quantity she had.

As, the quantity which she had is less, she cannot bake the bread.