If you divide a fraction over a number, you can just muplitply the denominator (the number under the line) by the number by which you divide:

99 and 21 are divisible by 3, so we can divide them both by it:

but that's all we can do!
so let's multiply

and it's its simplest form
Answer:
$80
Step-by-step explanation:
400÷50= 80 which is the weekly rate of wages
Answer:3 7/10
Step-by-step explanation:
:)
Using pythagorean theorem :

Answer: about seven