Posted by jenny on .
In some cases the Distributive Property of Multiplication over Addition or Distributive
Property of Multiplication over Subtraction can be used to obtain an answer quickly. Represent the following operations using one of the distributive properties and also give the answer.
a) 801 ? 30 + 4 ? 30
b) 65 ? 20 – 5 ? 20

mat 
MARINA,
you are correct that 12.5555... is a rational number equal to 113/9, but how did you know that? Which characteristic exactly indicates that 12.5555... can be written as a fraction?