How do you divide \frac { 5} { 15k + 20} \div \frac { 1} { 15k + 20}?

2 Answers
May 17, 2018

5

Explanation:

Couple of ways to do solve this equation:

Remember:
a/(1/b) = a xx b

(a/c) / (b/c) = (a/c) xx (c/b) = a/b

So now let see the original given equation:

(5/(15k+20)) -: (1/(15k+20))

(5/(15k+20)) / (1/(15k+20)) = 5/(15k+20) xx (15k+20)/1

(5/(15k+20)) / (1/(15k+20)) = 5/cancel(15k+20) xx cancel(15k+20)/1

(5/(15k+20)) / (1/(15k+20)) = 5

May 17, 2018

5

Explanation:

Remember

a/bdivc/d=a/bxxd/c

5/(15k+20)div1/(15k+20)=5/cancel(15k+20)xxcancel(15k+20)/1

5/1

5