Advertisements
Advertisements
प्रश्न
Evaluate:
`0 + (-2)/7`
Advertisements
उत्तर
`= (0xx7)/(1xx7) - (2xx1)/(7xx1)` (LCM of 0 and 7 = 7)
`= (0-2)/7 = (-2)/7`
APPEARS IN
संबंधित प्रश्न
Write five rational numbers which are smaller than 2.
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`.
Show the number √5 on the number line.
Evaluate:
`5/9 + 3/-4`
Show the following numbers on a number line.
`7/3, 2, (-2)/3`
Draw a number line and represent the following rational numbers on it
`(-8)/3`
Draw a number line and represent the following rational numbers on it
`15/(-4)`
`-3/4` is smaller than –2.
The rational numbers `(-12)/(-5)` and `(-7)/17` are on the opposite sides of zero on the number line.
Find the odd one out of the following and give reason.
