1 3/5
or
1 7/10
15/9
= 1.666666667
==================So, the mixed number can vary according to round off.
what is 15/9 as a mixed number?
Assuming you are working in the same base 10 number system as I am, 15/9 = 1 and 2/3, not 1 and 3/5.
If you check your work with a calculator, 2/3 = 0.6666666666666667.
If you compare 1 and 3/5 to 1 and 2/3, you will see the problem.
9 goes into 15 once - 9/9 =1
this then leaves 6 of the original 15 - 6/9
so this is 1 and 6/9
or, to simplify divide by the highest common factor (which is 3), giving
1 and 2/3