How do you show work for 60 + 30%? (Answer should be 78)

Actually the answer would be 18.

30%=30/100=0.3

60+30%=60+0.3=60.3

to obtain 78, hmm

60+18=78

18/60=3/10=30%

what you mean is

find what the value is when you take 30% of 60 and add it to the original number

30% of 60

percent mean sparts out of 100

30%=30/100=0.3

'of' means multiply

30% of 60 means 0.3 times 60 or 18

so

60+30% of 60=60+18=78

hope this is what you were looking for