Question

i need help bad

Answer 1

\[\frac{ 1 }{ d-1 }\]

Answer 2

thanks verry much.

Answer 3

can i ask how you did that please

Answer 4

First, do you know that dividing by a fraction is the same as multiplying by its reciprocal? In other words, dividing the fraction is same as multiplying the flipped fraction:
\( \dfrac{a}{b} \div \dfrac{\color{red}c}{\color{blue}d} = \dfrac{a}{b} \times \dfrac{\color{blue}d}{\color{red}c} \)

Answer 5

Then we can do some simplifications:
(a) There is now a factor of d^2 in both the numerator and denominator. The same nonzero number divided by itself is always equal to 1!
(b) We can try to factor the denominator. There may be a factor of the denominator also in the numerator! The same concept as in (a) occurs: if a factor is in numerator and denominator, we can eliminate it to simplify the problem!