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## anonymous 4 years ago 2x 3/8

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1. anonymous

i got 480/80

2. theEric

Is this $2 \times \frac{3}{8}$?

3. anonymous

yes

4. anonymous

helooooooooo

5. anonymous

1

6. anonymous

you have to multiply only the numerator by the three

7. anonymous

oops i meant two

8. theEric

Just remember that fractions are really the amount on top (numerator) divided by the amount on bottom (denominator). One way to look at it is to turn the fraction $\frac{3}{8}$ into$3\div8$, so you have $2\times3\div8$Then solve the multiplications and divisions separately$(2\times3)\div(8)=(6)\div(8)$and then make it look like a fraction again:$\frac{6}{8}$. That can be simplified, though. Or, look at the "2" like this:$\frac{2}{1}$, and multiply numerators together and denominators together. It's the same thing. Then$\frac{2}{1}\times\frac{3}{8}=\frac{2*3}{1*8}=\frac{6}{8}$.

9. theEric

Those are two ways to think about multiplying fractions!

10. theEric

Sorry I took so long!

11. anonymous

ok thanks

12. anonymous

can u help me in one more

13. theEric

Can you simplify it? Divide top and bottom by 2! Some teachers require simplification...

14. theEric

Possibly! I have to go soon! You post it, and I'll see if I can help!

15. anonymous

1 1/2 divided by 3

16. theEric

If it's very similar, I hope that you can do it on your own, or we can do it together!

17. theEric

So,$1\frac{1}{2}\div3$

18. anonymous

i got 1 2/20

19. theEric

That is different!

20. theEric

That's not quite right, but we'll get there! $1\frac{1}{2}=1+\frac{1}{2}$, right?

21. anonymous

yeah

22. theEric

and 1, as a fraction, is any number over itself, like$1=\frac{2}{2}$right? Then you can look at $1+\frac{1}{2}$like$\frac{2}{2}+\frac{1}{2}=\frac{3}{2}$

23. theEric

$1\frac{1}{2}=\frac{3}{2}$

24. anonymous

thanks men

25. theEric

$=3\div2$

26. theEric

That's just the fraction... You still have to divide by 3.

27. anonymous

1.5

28. theEric

$\frac{3}{2}=3\div2$ I did that again.. Similar to what we did before! Fraction to division... Really the same thing. Anyway, $1\frac{1}{2}\div3=\frac{3}{2}\div3=3\div2\div3=3\div3\div2=1\div2$ See what I did there? And, if you need the fraction, I trust you can find it!

29. theEric

It's just lucky that $3\div3=1$, because it made our problem easier! :)

30. anonymous

Eric if you want I'll take over from here if you have to go..

31. theEric

Thanks! I trust you can help with this question and any others! :) I do have to get going. Take care, all!

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