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Compare: (5)/-9 and (-5)/-9 - Mathematics

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Question

Compare: `(5)/-9 and (-5)/-9`

Sum

Solution

`(5)/-9 and (-5)/-9`

5 × -9 and -5 × -9 

`(therefore "a"/"b"  "and"  "c"/"d" => "a" xx "d"  "and"   "b" xx "c")`

- 45 < 45    (∵ a × d < b × c)

`therefore (5)/-9 < (-5)/-9`

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Concept for Problem Solving Using Operations on Rational Numbers
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Chapter 2: Rational Numbers - Exercise 2 (B)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 2 Rational Numbers
Exercise 2 (B) | Q 3.5
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