this is my question:

$\displaystyle 3\frac{1}{2}$ x $\displaystyle 1\frac{1}{4}$

i need to know how to do that queston but could you please ut workings out!!! thanks

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- Sep 11th 2009, 07:39 AMandyboy179multiplying fractions
this is my question:

$\displaystyle 3\frac{1}{2}$ x $\displaystyle 1\frac{1}{4}$

i need to know how to do that queston but could you please ut workings out!!! thanks - Sep 11th 2009, 07:46 AMmathaddict
- Sep 11th 2009, 07:56 AMandyboy179
- Sep 11th 2009, 02:23 PMHallsofIvy
Specifically, what he did was write 3 as 6/2 so that 3+ 1/2= 6/2 + 1/2= 7/2 and write 1 as 4/4 so that 1+ 1/4= 4/4+ 1/4= 5/4. And, yes, 5/4 is just a simpler way of writing $\displaystyle \frac{5}{4}$

As to what you wrote, yes, 6+1= 7 but no, 3x2 is not equal to 6+ 1!