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Add: (-7)/24 "And" (-5)/48 - Mathematics

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Question

Add: `(-7)/24  "and"  (-5)/48`

Sum

Solution

`(-7)/24  "and"  (-5)/48`

 

`= (- 7 xx 2)/(24 xx 2) + (- 5 xx 1)/(48 xx 1)`  
(∵ L.C.M. of 24 and 48 = 48)

`= (- 14)/48 + (-5)/48`

`= ((- 14) + (-5))/48 = (- 14 - 5)/48 =(- 19)/48`

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

APPEARS IN

Selina Concise Mathematics [English] Class 7 ICSE
Chapter 2 Rational Numbers
Exercise 2 (C) | Q 2.5
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