61×31=
To solve the problem of multiplying two fractions 61 and 31, we'll follow these steps:
- Step 1: Multiply the numerators of the fractions.
- Step 2: Multiply the denominators of the fractions.
- Step 3: Simplify the resulting fraction if necessary.
Let's apply these steps to our problem:
Step 1: Multiply the numerators: 1×1=1.
Step 2: Multiply the denominators: 6×3=18.
Therefore, the product of 61 and 31 is 181.
The solution to the problem is 181, which corresponds to choice 4.