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Naina was given $ 1 \frac{1}{2} $ piece of cake and Najma was given $ 1 \frac{1}{3} $ piece of cake. Find the total amount of cake was given to both of them.
Given:
Portion of cake given to Naina $=1\frac{1}{2}$
Portion of cake given to Najma $=1\frac{1}{3}$
To do:
We have to find the total portion of cake given to Naina and Najma.
Solution:
The total portion of the cake given to Naina and Nagma
$=$
Portion of cake given to Naina $+$ Portion of cake given to Najma
$=1\frac{1}{2} \ +\ 1\frac{1}{3}$
$=\frac{1\times2+1}{2}+\frac{1\times3+1}{3}$
$=\frac{3}{2} \ +\ \frac{4}{3}$
LCM of 3 and 2 is 6:
Therefore,
$\frac{3}{2} \ +\ \frac{4}{3}=\frac{( 3\ \times\ 3)\ +\ (4\ \times\ 2)}{6}$
$=\frac{9\ +\ 8}{6}$
$=\frac{17}{6}$
$=\frac{2\times6+5}{6}$
$=\mathbf{2\frac{5}{6}}$
Therefore, the total portion of cake given to both Naina and Najma is $2\frac{5}{6}$.
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