Question

Jerry has $3\frac{1}{2}$ feet of rope. He cuts off $\frac{5}{8}$ feet and uses it for a class project. How much rope is left with Jerry?

• A. $2\frac{7}{8}ft$
• B. $1\frac{7}{8}ft$
• C. $3\frac{9}{8}ft$

Answer 1

The correct option is A $2\frac{7}{8}ft$

Total length of rope with Jerry $=3\frac{1}{2}ft=\frac{7}{2}ft$
Length of rope used for his project $=\frac{5}{8}ft$
Length of the rope left $=\left(\frac{7}{2}﹣\frac{5}{8}\right)ft$
$=\left[\right(\frac{7}{2}\times \frac{4}{4})-\frac{5}{8}]$
$=(\frac{28}{8}-\frac{5}{8})ft$
$=\left(\frac{28-5}{8}\right)ft$
$=\frac{23}{8}ft$
$=2\frac{7}{8}ft$