Answer:
4/10 = 0.4 = 40%
32/40 = 0.8 = 80%
Explanation:
First, reduce the fraction. Then divide the numerator by the denominator to get a decimal. To go from a decimal to a percent, multiply the decimal by 100.
4/10 = 2/5 = 0.4 = 40%
32/40 = 8/10 = 0.8 = 80%