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प्रश्न
Evaluate:
`5/9 + (-7)/6`
उत्तर
`5/9 + (-7)/6`
| 2 | 9, 6 |
| 3 | 9, 3 |
| 3 | 3, 1 |
| 1, 1 |
LCM of 9 and 6 = 2 x 3 x 3 = 18
`= (5xx2)/(9xx2) - (7xx3)/(6xx3)`
(LCM of 9 and 6 = 18)
`= (10-21)/18`
`= (-11)/18`
APPEARS IN
संबंधित प्रश्न
Represent these numbers on the number line
`7/4`
Represent these numbers on the number line.
`-5/6`
Observe the number line and answer the questions.
- Which number is indicated by point B?
- Which point indicates the number `1 3/4`?
- State whether the statement ‘the point D denotes the number `5/2`’ is true or false.
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/(-9) + 1`
Find the rational numbers represented by the question marks marked on the following number line
The rational numbers `1/3` and `(-1)/3`are on the ______ sides of zero on the number line.
`-3/4` is smaller than –2.
The rational numbers can be represented on the number line.
Find the odd one out of the following and give reason.
