Question

http://imgur.com/a/YFQx5
Help please

Answer 1

Let's first use a hypothetical model:\[\frac{a}{b}\times\frac{c}{d}=\frac{a\times c}{b\times d}\]
Now you have an equation \[\frac{3}{16}\times\frac{4}{21}\]using the modeled equation, try and solve for the answer

Answer 2

Here is a hint:\[\frac{a}{b}\longleftrightarrow\frac{3}{16}\]\[\frac{c}{d}\longleftrightarrow\frac{4}{21}\]

Answer 3

f need to simplify?

Answer 4

What do you mean?

Answer 5

do i need to simplify ?

Answer 6

Simplify, where?

Answer 7

I cant anymore xD

Answer 8

If you mean cross-cancel, then yes, you can do that. The numerator and denominator can be divided because they are in a division form.
Example:\[\frac{3\times8x}{12\times40x}\]The 3 and the 12 simplify to \(\large{\frac{1}{4}}\) and the 8x and 40x simplify to \(\large{\frac{1}{5x}}\).

Answer 9

The result for that example would be \[\frac{1\times1}{4\times5x}=\frac{1}{20x}\]

Answer 10

Yes

Answer 11

Okay, so you have your equation...\[\frac{3}{16}\times\frac{4}{21}\]Anything that can be factored/canceled?

Answer 12

wait

Answer 13

ugh

Answer 14

\[21=3\times7\]\[16=4\times4\]\[\frac{3}{16}\times\frac{4}{21}...\]

Answer 15

Hint #2: you will get 1 as the numerator in both fractions if you cross-cancel correctly

Answer 16

I'm not from us

Answer 17

\[\frac{3}{16}\times\frac{4}{21}\]\[\frac{3}{4\times4}\times\frac{4}{3\times7}\]Anything that can be canceled?

Answer 18

no

Answer 19

Ok, I think you are confused.
I will start over.
\[\frac{3}{16}\times\frac{4}{21}=\frac{3\times4}{16\times21}=\frac{3\times4}{(4\times4)\times(3\times7)}\]

Answer 20

Does that help more?

Answer 21

Yes!

Answer 22

Okay, good :-)

Answer 23

Why am i getting 336

Answer 24

and 12

Answer 25

That is an answer, that you can simplify, but first try to simplify this.\[\frac{3\times4}{4\times4\times3\times7}\]

Answer 26

it says make your answer in simpliest form

Answer 27

what do i do with 336

Answer 28

Yes, try to simplify the fraction I just gave you.

Answer 29

3/4

Answer 30

No. :(

Answer 31

.....

Answer 32

There is a 4 in the top and a 4 on the bottom, so you can cross those out because 4 divided by 4 is 1.

There is a 3 in the top and a 3 on the bottom, so you can also cross those out because 3 divided by 3 is 1.

Answer 33

After you do that, you have this:\[\frac{\cancel{3\times4}}{\cancel{4\times3}\times4\times7}=\frac{1}{4\times7}=?\]

Answer 34

i'm getting 28

Answer 35

28 in what?

Answer 36

4x7

Answer 37

Yes, but don't forget the top part!\[\frac{\color{red}{1}}{4\times7}\]

Answer 38

28and 1

Answer 39

erm

Answer 40

28 and 1? What do you mean?

Answer 41

fml

Answer 42

\[\frac{1}{4\times7}=\frac{1}{28}\]

Answer 43

...

Answer 44

thats what i said

Answer 45

I'm sorry, I didn't understand what you said before.
Ok, then yes, you got it right.

Answer 46

I read it as "1 over 28"

Answer 47

thats done

Answer 48

Ok.

Answer 49

Have fun and good luck studying then ♣

Answer 50

tyy