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Mathematics

Grade-7

Easy

Question

The value of $2 left parenthesis 0.6 right parenthesis space plus space open parentheses fraction numerator negative 1 over denominator 9 end fraction close parentheses$ is ___________.

$\frac{44}{45}$
$\frac{40}{45}$
$\frac{49}{45}$
$\frac{45}{49}$

hint Hint:

Solve using BODMASS.

The correct answer is: $49 over 45$

STEP BY STEP SOLUTION
$2 left parenthesis 0.6 right parenthesis space plus space open parentheses negative 1 over 9 close parentheses space C o n v e r t i n g space d e c i m a l space i n t o space f r a c t i o n space equals space 2 space cross times space 6 over 10 space plus space open parentheses negative 1 over 9 close parentheses space M u l t i p l y i n g space a n d space o p e n i n g space b r a c k e t space equals space 12 over 10 space minus space 1 over 9 space T a k i n g space L C M thin space o f space 10 space & space 9 space left parenthesis i. e space 90 right parenthesis fraction numerator 108 space minus space 10 space over denominator 90 end fraction space equals fraction numerator space 98 over denominator 90 end fraction space equals space 49 over 45$

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