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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

1 Answer

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Answer:


39(1)/(2) \ in

Explanation:

we know that

The total wood needed is equal to


2[12(1)/(2) ]+2[7(1)/(4)]

Convert mixed number to an improper fraction


12(1)/(2)\ in=12+(1)/(2)=(12*2+1)/(2)=(25)/(2)=(50)/(4) \ in


7(1)/(4)\ in=7+(1)/(4)=(7*4+1)/(4)=(29)/(4)\ in

substitute


2[(50)/(4) ]+2[(29)/(4)]


(100)/(4)+(58)/(4)


(158)/(4)=39.5=39(1)/(2) \ in

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