Question

A single box of thumb tacks weighed 3 1
⁄2 ounces. If a teacher had 4 1⁄7 boxes, how
much would their combined weight be?

Answer 1

$3 \frac{1}{2} *4 \frac{1}{7} = \frac{7}{2} * \frac{29}{7} = \frac{29}{2} = 14\frac{1}{2} =14.5$

Answer 2

The combined weight of the boxes which is the product of the weight per box and the number of boxes is 14.5 ounces

Weight of each box = $3 \frac {1}{2} \: ounces$

Number of boxes = $4 \frac {1}{7}$

The combined weight will be the product of each single box and the Number of boxes ;

Weight of each box × Number of boxes

$\frac {7}{2} \times \frac {29}{7} = \frac{203}{14}= 14 \frac{1}{2}$

Therefore, the combined weight of the boxes will be 14.5 ounces

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