21:3=
To solve this problem of dividing a fraction by a whole number, we'll follow these steps:
- Step 1: Change the whole number to a reciprocal fraction.
- Step 2: Multiply the original fraction by the reciprocal.
- Step 3: Simplify the resulting fraction, if necessary.
Now, let's apply these steps:
Step 1: The whole number 3 is converted to the reciprocal fraction 31.
Step 2: Multiply the fraction 21 by 31:
21×31=2×31×1=61
Step 3: The resulting fraction 61 is already in its simplest form.
Therefore, when 21 is divided by 3, the resulting answer is 61.