Question

Rishab spent 1/4 of his pocket money on buying a book and 1/ 14 of the pocket money on lunch. What fraction of the pocket money did he spent? with formula​

Answer 1

Answer:

fraction of pocket money rishab spent =

1/4 + 1/14 = (1×7 + 1×2)/28

=(7+2)/28 = 9/28

Answer 2

Answer:

$\frac{9}{28}$

Explanation:

Fraction of pocket money spent on book = $\frac{1}{4}$

Fraction of pocket money spent on lunch = $\frac{1}{14}$

∴ Fraction of pocket money spent = $\frac{1}{4} + \frac{1}{14}$

$\frac{1}{4} + \frac{1}{14}$

=> L.C.M of 4, 14 = 28

So, $\frac{1*7}{4*7} = \frac{7}{28}$ and $\frac{1*2}{14*2} = \frac{2}{28}$

=> $\frac{7}{28}+\frac{2}{28}$

=> $\frac{7+2}{28}$

=> $\frac{9}{28}$

∴ Total fraction of pocket money spent = $\frac{9}{28}$

Hope this helps!