Question

16. Suppose Eva has 12 3/4 pounds of flour. The day's baking will require triple that amount.

How much flour will Eva need?
A. 37 lb
B. 38 1/2 lb
C. 373/4 lb
D. 38 1/4 lb
E. 38 1/3 lb

Answer 1

Option D

Explanation:

Given the following question:


`12 (3)/(4) *3`

In order to find the answer, we have to convert the mixed number and then multiply by three, since how Eva needs triple the amount for today's baking.


`12 (3)/(4) *3`

`12(3)/(4) =4*12=48+3=51=(51)/(4)`

`3=(3)/(1)`

`(51)/(4) *(3)/(1)`

`51*3=153`

`4*1=4`

`=(153)/(4)`

Convert the improper fraction back into a mixed number:


`(153)/(4)`

`(153)/(4) =153/4=38(1)/(4)`

`=38(1)/(4)`

Which means Eva needs "38 1/4 pounds of flour" or option D for today's baking.