Question

class 7 maths operation on rational numbers chapter 7
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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Given (-7/27) and (11/18)

LCM of 27 and 18 is 54

(-7/27) = (-7/27) × (2/2) = (-14/54)

(11/18) = (11/18) × (3/3) = (33/54)

(-7/27) + (11/18) = (-14 + 33)/54

= (19/54)

Step-by-step explanation:

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