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प्रश्न
Find the odd one out of the following and give reason.
पर्याय
`4/(-9)`
`(-16)/36`
`(-20)/(-45)`
`25/(-63)`
उत्तर
`bb((-20)/(-45))`
Explanation:
From the above given rational numbers, `(-20)/(-45)` is odd among others, because `(-20)/(-45)` can be written as `20/45`, which is only positive rational number among all.
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संबंधित प्रश्न
Represent these numbers on the number line.
`-5/6`
Write five rational numbers which are smaller than 2.
Show the following numbers on a number line. Draw a separate number line for the example.
`(-5)/8 , 11/8`
The number `sqrt2` is shown on a number line. Steps are given to show `sqrt3` on the number line using `sqrt2`. Fill in the boxes properly and complete the activity.
Activity :
- The point Q on the number line shows the number ______.
- A line perpendicular to the number line is drawn through the point Q. Point R is at unit distance from Q on the line.
- Right angled ∆ORQ is obtained by drawing seg OR.
`l ("OQ") = sqrt2` , `l("QR") = 1`
`therefore` by Pythagoras theorem,
`[l("OR")]^2 = [l("OQ")]^2 + [l("QR")]^2 `
= `square^2`+ `square^2` = `square` + `square`
= `square`
∴ l(OR) = `square`
Draw an arc with centre O and radius OR. Mark the point of intersection of the line and the arc as C. The point C shows the number `sqrt3`.
Evaluate:
`4 + 3/(-5)`
Evaluate:
`0 + (-2)/7`
Evaluate:
`4/(-9) + 1`
Draw a number line and mark
`2/3, (-8)/3, 7/3, (-2)/3 and -2`
The rational numbers `1/3` and `(-1)/3`are on the ______ sides of zero on the number line.
The rational number `(-8)/(-3)` lies neither to the right nor to the left of zero on the number line.
