Answer:
I solved it like the pic but I can't see my solution
ANSWER
Rewrite and make substitution.
EXPLANATION
Since Harriet calculated 27 divided 4 and had 6.75.
This means that:
![\frac{27}{4} = 6.75](https://tex.z-dn.net/?f=%20%5Cfrac%7B27%7D%7B4%7D%20%20%3D%206.75)
Now we want to find
![\frac{270}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B270%7D%7B4%7D%20)
without divide.
Therefore we need to rewrite the expression so in terms of
![\frac{27}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B27%7D%7B4%7D%20)
so that we can substitute.
This will give us;
![\frac{270}{4} = \frac{27}{4} \times 10](https://tex.z-dn.net/?f=%20%5Cfrac%7B270%7D%7B4%7D%20%20%3D%20%20%5Cfrac%7B27%7D%7B4%7D%20%20%5Ctimes%2010)
This implies that,
![\frac{270}{4} = 6.75 \times 10](https://tex.z-dn.net/?f=%5Cfrac%7B270%7D%7B4%7D%20%20%3D%20%206.75%20%20%5Ctimes%2010)
![\frac{270}{4} = 67.5](https://tex.z-dn.net/?f=%5Cfrac%7B270%7D%7B4%7D%20%20%3D%2067.5)