If you know the number is 7128 I do not understand why on earth anyone would want to estimate it!
94
70.013
77
2.6952
100+500=600
Estimate 43/81 by using compatible numbers
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.
i think it is 28x26
94
23.3043
119.3333
70.013
300 + 60
77
280 + 500 = 780
That equals 559. If you have to, estimate 210 + 350 = 560
2.6952