500/10 = 50
45/9 = 5
247.6667
The best estimate is always the exact answer since it is always possible to improve upon any other estimate.
20.8
87.0484
805 and 1/ 3rd
The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.
500/10 = 50
17.0429
20.3897
106.8333
38
The best estimate is the true value.
31.8321
0.975
1/80