Answer:
Step-by-step explanation:
The fraction 6 3/4 is closer to 7 than it is to 6; the fraction 1 2/3 is closer to 2 than it is to 1. So the best estimation is the first choice, 7 / 2.
7 ÷ 2
4.05 -3.5 =0.55
4.05 - 6 =-1.94
4.05 -2.66 =1.38
4.05 -1.5 =2.55
