Advertisements
Advertisements
प्रश्न
Find the reciprocal of the following:
`20/51 xx 4/91`
बेरीज
उत्तर
Given, `20/51 xx 4/91`
= `(20 xx 4)/(51 xx 91)` ......`[∵ "Product of rational numbers" = "Product of numerators"/"Product of denominators"]`
= `80/4641`
Hence, the reciprocal of `80/4641` is `4641/80`.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Rationals Numbers - Exercise [पृष्ठ २५०]
APPEARS IN
संबंधित प्रश्न
Find the value of `3/13 ÷ ((-4)/65)`.
Evaluate:
`0 ÷ (- 4/7)`
m and n are two rational number such that
`"m"xx"n"=-25/9`
if `"m"=5/3`, find `"n"`.
`
Evaluate:
`-3/4 ÷ (-9)`
Divide:
`(-5)/8 "by" 1/4`
Cost of `3 2/5` metre of cloth is ₹`88 1/2.` what is the cost of 1 metre of cloth?
Find (a + b) ÷ (a – b) if a = `(-3)/5`, b = `2/15`
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)`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find (x – y) + z.
