Which problem can be solved using this equation?
[tex]x+2=\frac{1}{4}(42)?[/tex]
A. Mary had 42 empty boxes when she started packing yesterday. Today, she is 2 short of having [tex]$\frac{1}{4}$[/tex] of the boxes filled. How many boxes are filled?
B. Mary had 42 empty boxes when she started packing yesterday. Today, she is 2 short of having [tex]$\frac{1}{4}$[/tex] of the boxes filled. How many boxes are still empty?
C. Mary had 42 empty boxes when she started packing yesterday. Today, she is 2 short of having [tex]$\frac{1}{4}$[/tex] of the boxes filled. How many additional boxes does Mary need?
D. Mary had 42 empty boxes when she started packing yesterday. Today, she is 2 short of having [tex]$\frac{1}{4}$[/tex] of the boxes filled. How many boxes will Mary have left to fill tomorrow?
Answer (3)
In order to subtract two fractions, they need to have a common denominator which would be 12, so you need to change all the denominators to 12. 7/12 is still 7/12 1/6 is multiplied by 2/2 to become 2/12. Then you can subtract. 7/12 - 2/12 = 5/12 So the simplest form would be 5/12
7/12-1/6=7/12-2/12=5/12
To subtract 12 7 and 6 1 , first change 6 1 to 12 2 . Then subtract: 12 7 − 12 2 = 12 5 , which is the simplest form.
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