To convert the mixed number 3 7 into a decimal, we start by separating the whole number and the fraction. The whole number is 3, and the fraction is 7.
Next, we first express the fraction 7 as a decimal. Since 7 is greater than 1, it can be converted by dividing it by 1 (the denominator). This yields:
7 divided by 1 = 7.0
Now, we combine this decimal result with the whole number part. We simply add 3 to 7.0:
3 + 7.0 = 10.0
Therefore, 3 7 as a decimal is 10.0.