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Find the product of: -45 and -512 - Mathematics

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Question

Find the product of:

 `(-4)/5` and `(-5)/12`

Sum

Solution

Given, `(-4)/5` and `(-5)/12`

∴ Product of rational numbers = `"Product of numerators"/"Product of denominators"`

= `((-4) xx (-5))/(5 xx 12)`

= `20/60`

= `(20 ÷ 20)/(60 ÷ 20)`  ......[Dividing numerator and denominator by 20]

= `1/3`

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Chapter 8: Rationals Numbers - Exercise [Page 249]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 8 Rationals Numbers
Exercise | Q 80. (i) | Page 249

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