>>13105672https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-pos-neg-exponents/v/negative-exponentslet's assume you have 1 cake and you cut it in 4 equal parts (the 1/4 in that equation). how many parts do you have?
1/(1/4) = 4, do you understand that?
let's use different notation to make it more clear:
1/(1/4) = 1/(4^(-1))^(-1) = 1*(4^(-1))^(-1)
(4^(-1))^(-1) = (1/4)^(-1) = 4
so 1/(1/4) = 4
repeat once and once again. one of the divisions become negative, and then a subtraction with a negative number happens. as
>>13105835 says, the minuts cancel out.
