Step-by-step explanation:
Multiply (4/10) by 10 to find the sum using common denominators:
[tex] \frac{4 \times 10}{10 \times 10} = \frac{40}{100} [/tex]
Add:
[tex] \frac{40}{100} + \frac{20}{100} = \frac{60}{100} [/tex]
60/100 is your unsimplified answer.
Divide (60/100) by 20:
[tex] \frac{60 \div 20}{100 \div 20} = \frac{3}{5} [/tex]
3/5 is your simplified answer.
