Hello andyboy179 Originally Posted by
andyboy179 hi this is my question:
$\displaystyle 3\frac{3}{4}$ x $\displaystyle \frac{5}{2}$
would the answer be, $\displaystyle 4\frac{7}{8}$
No, but I can see how you got it: you multiplied $\displaystyle \frac34$ by $\displaystyle \frac52$ and added the result to $\displaystyle 3$.
You have to multiply the $\displaystyle 3$ by $\displaystyle \frac52$ as well. So you write $\displaystyle 3\frac34$ as a 'top-heavy' fraction first: $\displaystyle \frac{15}{4}$. Then multiply: $\displaystyle \frac{15}{4}\times\frac52=\frac{75}{8}=9\frac38$
Grandad