#### Answer

a.) $\frac{2.20 lb}{1 kg}$; $\frac{1 Kg}{2.20 lb}$
b.) kg, denominator

#### Work Step by Step

a.) As we know 1 kilogram = 2.20 pound
The two unit fractions using the information for converting between kilograms and pounds
To convert kilogram to pounds
Unit for the answer (pound) is in numerator; unit being changed (kilogram) is in denominator so it will divide out. The unit fraction is (2.20 lb)/(1 kg).
To convert pounds to kilogram
Unit for the answer (kilogram) is in numerator; unit being changed (pounds) is in denominator so it will divide out. The unit fraction is (1 kg)/(2.20 lb).
b.) Convert 5 kg to pounds
To convert kilogram to pounds
Unit for the answer (pound) is in numerator; unit being changed (kilogram) is in denominator so it will divide out. The unit fraction is (2.20 lb)/(1 kg).
When you will multiply 5 kg to the unit fraction kg unit will be divide out.
In the unit fraction the unit being changed will be written in the denominator.