ANSWER
Rewrite and make substitution.
EXPLANATION
Since Harriet calculated 27 divided 4 and had 6.75.
This means that:
[tex] \frac{27}{4} = 6.75[/tex]
Now we want to find
[tex] \frac{270}{4} [/tex]
without divide.
Therefore we need to rewrite the expression so in terms of
[tex] \frac{27}{4} [/tex]
so that we can substitute.
This will give us;
[tex] \frac{270}{4} = \frac{27}{4} \times 10[/tex]
This implies that,
[tex]\frac{270}{4} = 6.75 \times 10[/tex]
[tex]\frac{270}{4} = 67.5[/tex]
