# Cupcakes

In a bowl was some cupcakes. Janka ate one third and Danka ate one quarter of cupcakes.

a) How many of cookies ate together?
b) How many cookies remain in a bowl?

Write the results as a decimal number and in notepad also as a fraction.

Correct result:

a =  0.58
b =  0.42

#### Solution:

$a=\frac{1}{3}+\frac{1}{4}=\frac{7}{12}=0.58$
$b=1-a=1-\left(\frac{1}{3}+\frac{1}{4}\right)=\frac{5}{12}=0.42$

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