Answer: 
Step-by-step explanation:
Given
Kira order 2 pieces of tuna and 5 pieces of crab
While Marcy ordered 3 pieces of tuna and 6 pieces of crab
Total tuna ordered =2+3=5 pieces
Total crab ordered=5+6=11 pieces
The ratio of Tuna and crab is 
(-5,7 i should be the answer
7 3/4 is 775%
13/200 is 6.5%
0.0675 is 6.75%
Can you attach a picture of the problem? We do not know what problem you’re talking about.