Advertisements
Advertisements
प्रश्न
Find the product of:
`(-22)/11` and `(-21)/11`
बेरीज
Advertisements
उत्तर
Given, `(-22)/11` and `(-21)/11`
∴ Product of rational numbers = `"Product of numerators"/"Product of denominators"`
= `((-22) xx (-21))/(11 xx 11)`
= `462/121`
= `(462 ÷ 11)/(121 ÷ 11)` ...[Dividing numerator and denominator by 11]
= `42/11`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Rationals Numbers - Exercise [पृष्ठ २४९]
APPEARS IN
संबंधित प्रश्न
Find the value of `(-4) ÷ 2/3`.
Evaluate:
`0 ÷ (- 4/7)`
Evaluate:
`8/(-5) ÷ 24/25`
Divide the sum of `3/7` and `(-5)/14` by `(-1)/2`
Divide : −2 by `(-6)/(15)`
Match the following:
| Column I | Column II |
| (i) `a/b ÷ a/b` | (a) `(-a)/b` |
| (ii) `a/b ÷ c/d` | (b) –1 |
| (iii) `a/b ÷ (-1)` | (c) 1 |
| (iv) `a/b ÷ (-a)/b` | (d) `(bc)/(ad)` |
| (v) `b/a ÷ (d/c)` | (e) `(ad)/(bc)` |
Simplify:
`3/7 ÷ (21/-55)`
Find the reciprocal of the following:
`20/51 xx 4/91`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the reciprocal of x + y.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find x ÷ (y ÷ z).
