Last night, the temperature fell from 0°F to - 13-Fi
45
hours. Alan calculated the average temperature
change per hour.
1
-13
Alan solved the problem, but when he checked the
answer by estimating, it didn't seem right. What error
did he make?
O Alan converted the mixed number to the wrong
improper fraction.
O He did not use the correct reciprocal fraction.
O He did not change the division problem to
multiplication.
O He added the numerators and denominators
instead of multiplying.
2
5
4.
66
5
22
5
66/22
6 (13)
1,452
25
Intro
