Set up division as fraction: First, we need to set up the division as a fraction: 121÷3.
Convert whole number to fraction: Convert the whole number3 into a fraction, which is 13. Now, the division looks like (121)÷(13).
Multiply by reciprocal: To divide by a fraction, we multiply by its reciprocal. The reciprocal of 13 is 31. So, we change the division to multiplication: (121)×(31).
Multiply numerators and denominators: Multiply the numerators and the denominators: (1×1)/(12×3)=1/36.