Erica

Erica bought 3 1/2 yards of fabric. If she uses 2/3 of the fabric, how much will she have left?

Correct answer:

x =  1.1667 yd

Step-by-step explanation:

$$\begin{gathered} a=3+1\mathrm{/}2={\displaystyle \frac{7}{2}}=3.5\text{ yd } \\ u={\displaystyle \frac{2}{3}}\cdot a={\displaystyle \frac{2}{3}}\cdot 3.5={\displaystyle \frac{7}{3}}\doteq 2.3333\text{ yd } \\ x=a-u=3.5-2.3333={\displaystyle \frac{7}{6}}=1.1667\text{ yd} \end{gathered}$$

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