हिंदी

Arrange the Following Rational Numbers in Descending Order. − 3 8 , 2 5 and − 1 3

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प्रश्न

Arrange the following rational numbers in descending order.

`(-3)/(8),(2)/(5) and (-1)/(3)`

योग
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उत्तर

Given numbers : `(-3)/(8),(2)/(5) and (-1)/(3)`

The L.C.M. of 8, 5 and 3 is 120.

Thus, numbers are :
`(-3)/(8)`

= `(-3 xx 15)/(8 xx 15)`

= `(-45)/(120)`,

`(2)/(5)`

= `(2 xx 24)/(5 xx 24)`

= `(48)/(120)`,

`(-1)/(3)`

= `(-1 xx 40)/(3 xx 40)`

= `(-40)/(120)`

Since 48 > -40 > -45, we have `(2)/(5) > (-1)/(3) > (-3)/(8)`.

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अध्याय 1: Irrational Numbers - Exercise 1.1

APPEARS IN

फ्रैंक Mathematics [English] Class 9 ICSE
अध्याय 1 Irrational Numbers
Exercise 1.1 | Q 11.4

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