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Phoenix [80]
3 years ago
11

Can someone help me out with this please? I suck at fractions

Mathematics
1 answer:
xxMikexx [17]3 years ago
5 0

164 inches x \frac{1 foot}{12 inches} = \frac{41}{3}ft

147 inches x \frac{1 foot}{12 inches} = \frac{49}{4}ft

2\frac{1}{4}ft = \frac{9}{4}

Perimeter = 2L + 2w - 1doorway

                 = 2(\frac{41}{3}) + 2((\frac{49}{4}) - \frac{9}{4}

                = \frac{82}{3} + \frac{98}{4} - \frac{9}{4}

                = \frac{82}{3} + \frac{89}{4}

                 = (\frac{4}{4} )\frac{82}{3} + (\frac{3}{3} )\frac{89}{4}

                 = \frac{328}{12} + \frac{267}{12}

                 = \frac{595}{12}

                = 49\frac{7}{12}ft

******************************************************************************

b) 49\frac{7}{12}ft ÷ 8ft = 6.2

7 boards need to be purchased

                 

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