43×21×21=
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: Multiply the numerators:
.
Step 2: Multiply the denominators:
.
Step 3: Write the resulting fraction:
.
Step 4: Look at the multiple-choice list provided. Our answer, , matches choice 1.
The resulting fraction is already in its simplest form. Therefore, the solution to the problem is .