Answer:
I believe it's D, but it could also be A (I'm sorry!)
Step-by-step explanation:
Definitely cannot be B because the decimal is in the wrong place and C has no decimal point of reference.
24.2
3 1/5= 3 2/10
4 1/2= 4 5/10
3 2/10+ 4 5/10= 7 7/10
ypu need to use the method before change and after
