Advertisements
Advertisements
Question
Simplify:
`3/7 ÷ (21/-55)`
Sum
Solution
Given, `3/7 ÷ (21/-55)`
The reciprocal of `(21/-55)` is `(-55)/21`
So, `3/7 ÷ (21/-55) = 3/7 xx ((-55))/21 = ((-55) xx 3)/(7 xx 21) = (-55)/49`
shaalaa.com
Is there an error in this question or solution?
Chapter 8: Rationals Numbers - Exercise [Page 249]
APPEARS IN
RELATED QUESTIONS
The product of two numbers is `(-4)/9`. If one of them is` (-2)/27`, find the other.
Evaluate:
`0 ÷ (- 4/7)`
Divide:
` 3 "by" 1/3`
If `3 1/2` litres of milk costs ₹49, find the cost of one litre of milk?
Find (m + n) ÷ (m - n), if:
m = `4/5` and n = `-3/10`
Divide : −2 by `(-6)/(15)`
Find (a + b) ÷ (a – b) if a = `1/2`, b = `2/3`
Which of the following rational numbers is equal to its reciprocal?
If `p/q` is a rational number and m is a non-zero common divisor of p and q, then `p/q = (p ÷ m)/(q ÷ m)`.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find (x – y) + z.
