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Use the distributivity of multiplication of rational numbers over their addition to simplify: 34×[89-40] - Mathematics

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Question

Use the distributivity of multiplication of rational numbers over their addition to simplify: 

`3/4 xx [8/9 - 40]`
Sum

Solution

Given, `3/4 xx (8/9 - 40)`

= `3/4 xx 8/9 + (3/4) xx (-40)`  ...[By using distributive property over addition]

= `2/3 - 30`

= `(2 - 90)/3`

= `(-88)/3` 

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Chapter 1: Rational Numbers - Exercise [Page 20]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 8
Chapter 1 Rational Numbers
Exercise | Q 111. (d) | Page 20
RD Sharma Mathematics [English] Class 8
Chapter 1 Rational Numbers
Exercise 1.6 | Q 4.4 | Page 32
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