Question

Mary bought a dozen eggs at the shop she used third of dozer for breatest and quarter for breakfast. How many eggs are left?show all your calculations.
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Answer 1

When numbers are grouped in twelves, each group is referred to as a dozen.

There are 5 eggs left

The amount of egg she bought is:

$\mathbf{Amount = 1\ dozen}$

Third of a dozen for breatest, means:

$\mathbf{Breatest = \frac4{12}}$

Quarter for breakfast, means:

$\mathbf{Breakfast = \frac1{4}}$

So, the fraction of eggs left is:

$\mathbf{Eggs = Amount - Breatest -Breakfast }$

This gives:

$\mathbf{Eggs = 1 - \frac{4}{12} - \frac{1}{4}}$

Take LCM

$\mathbf{Eggs = \frac{12 - 4 - 3}{12}}$

$\mathbf{Eggs = \frac{5}{12}\ dozen}$

1 dozen means 12.

So, we have:

$\mathbf{Eggs = \frac{5}{12} \times 12}$

$\mathbf{Eggs = 5}$

Hence, she still has 5 eggs left

Read more about grouping of numbers at:

https://brainly.com/question/24231730