Answer:
1.164021 (Repeating)
Explanation:
Remember the order of operations, PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.). The order of operations show what goes first in an equation, from left to right.
9/11*20/21
First, we multiply 11*22 to get 220.
9/220/21
Then we divide 9/220 because the nine uses the next operation in PEMDAS (Division, which comes after Mutiplication) which equals 24.4 repeating (Or, 24.44444444 but where the number shown in the decimal keeps repeating. This is commonly shown in math by putting a line over the numbers that repeat indefinitely.)
24.4(Repeating)/21
Finally, we divide 24.4/21 to get 1.164021 (Repeating, meaning it's more like 1.164021164021164021164021164021164021164021164021 but where 164021 would repeat forever.)
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9/11*20/21=1.164021