Question

Keith had 8 1/2 cups of flour. he used 5 2/3 cups to make bread. how many cups of flour does Keith have left

Answer 1

Answer:

$2\frac{5}{6}\ cups$

Step-by-step explanation:

To find out how many cups of flour Keith has left

Subtract $5\frac{2}{3}$ cups from  $8\frac{1}{2}$ cups

Convert to an improper fractions first

$5\frac{2}{3}=5+\frac{2}{3}=\frac{5*3+2}{3}=\frac{17}{3}$

$8\frac{1}{2}=8+\frac{1}{2}=\frac{8*2+1}{2}=\frac{17}{2}$

so

$\frac{17}{2}-\frac{17}{3}=\frac{17*3-17*2}{6}=\frac{17}{6}\ cups$

convert to mixed number

$\frac{17}{6}=\frac{12}{6}+\frac{5}{6}=2+\frac{5}{6}=2\frac{5}{6}\ cups$

Answer 2

8 1/2  -  5 2/3  =

= 17/2 − 17/3

= ((17 × 3) − (17 × 2)) / (2 × 3)

= (51 - 34) / 6

= 17/6

= 17/6

= 2 5/6

Hope this helps. :)