To convert the mixed number 5 7 into a decimal, we start by understanding its composition. A mixed number consists of a whole number and a fraction. In this case, we have 5 as the whole number and 7 as the fraction.
First, we interpret the fraction 7. Since it is not specified over a denominator, we will assume it is to be over 10, making it 7/10. So, we can express the mixed number as:
5 + (7 / 10)
Now, we convert 7/10 into a decimal. The fraction 7/10 is equivalent to 0.7 because when you divide 7 by 10, the result is 0.7.
Next, we sum the whole number with the decimal:
5 + 0.7 = 5.7
So, the decimal representation of 5 7 is 5.7.