To convert the improper fraction 12/7 into a mixed number, we first divide the numerator (12) by the denominator (7).
When we divide 12 by 7, we get:
12 ÷ 7 = 1 with a remainder of 5.
This tells us that there is 1 whole number and a remainder of 5. We can express this as:
1 (whole number) and the remainder (5) over the original denominator (7).
Thus, we can write it as:
1 5/7.
So, 12/7 as a mixed number is 1 5/7.