Question

`(1)/(k) - (1)/(4) = 5`
solve the above by using change of subject​

Answer 1

The answer should be 4/21 hope I’m right :))

Answer 2

4/21

Explanation:

Given:

• 1/k - 1/4 = 5

Subject is k, so the following steps are to solve it for k:

• 1/k = 5+ 1/4 ⇒ adding 1/4 to both sides
• 1/k = 21/4 ⇒ simplifying the fraction on right side
• k = 4/21 ⇒ inverting both sides to get answer

Answer is 4/21