Question

Grace needs enough wood to make a frame for a picture. she needs the two sides to measure 12 1/2 and the top and bottom to measure 7 1/4 inches. how much wood do she need to purchase

Answer 1

Answer:

$39\frac{1}{2} \ in$

Step-by-step explanation:

we know that

The total wood needed is equal to

$2[12\frac{1}{2} ]+2[7\frac{1}{4}]$

Convert mixed number to an improper fraction

$12\frac{1}{2}\ in=12+\frac{1}{2}=\frac{12*2+1}{2}=\frac{25}{2}=\frac{50}{4} \ in$

$7\frac{1}{4}\ in=7+\frac{1}{4}=\frac{7*4+1}{4}=\frac{29}{4}\ in$

substitute

$2[\frac{50}{4} ]+2[\frac{29}{4}]$

$\frac{100}{4}+\frac{58}{4}$

$\frac{158}{4}=39.5=39\frac{1}{2} \ in$