Question

8. Shikha ate
12
12.
nin
of a cake and Anandi ate
of the same cake. What part of the cake was left?​

Answer 1

Step-by-step explanation:

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$\frac{2}{5} + \frac{1}{4} + x = 1$

$\frac{2 \times 4}{20} + \frac{1 \times 5}{20}$

$\frac{8 + 5}{20} + x = 1$

$= \frac{13}{20} + x = 1$

$x = - \frac{13}{20} \times \frac{1}{1} + \frac{1}{1} \times \frac{20}{20}$

$x = \frac{ - 13}{20} + \frac{20}{20}$

$x = \frac{ - 13 + 20}{20}$

$x = \frac{7}{20}$

therefore 7/20 part of cake is left.

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