start by showing how many whole groups of 12 ones are in 9 ones. 1 2 \\…

$start by showing how many whole groups of 12 ones are in 9 ones. 1 2 \\…$

start by showing how many whole groups of 12 ones are in 9 ones.
1 2 \overline{9}

We are dividing 9 by 12 (since the divisor is 12 and the dividend is 9). We need to find how many whole groups of 12 are in 9.

Since 9 is less than 12, we can't have a whole group of 12 in 9. So the number of whole groups is 0.

0