41×21=
To solve this problem, we will multiply the two fractions given: 41 and 21.
- Step 1: Multiply the numerators: 1×1=1.
- Step 2: Multiply the denominators: 4×2=8.
- Step 3: Combine these results into a new fraction: 81.
Therefore, the product of the fractions 41 and 21 is 81. This matches choice 3 from the provided answer choices.