Calculate the exact value of number one

Answer:
1. a. (ii) 1/27
Step-by-step explanation:
1st one is already given, I will give you the answer to the second one,
³√27/9²
= 3/81
= 1/27
Answered by GAUTHMATH
Answer:
17/42 or in decimal 0.405
Step-by-step explanation:
Add: 1 4/7+2/3- 1 5/6= 47/21- 1 5/6
Subtract: 47 - 1 5/6 = 17/42
Simplify: 17/42