Question

tell me the way how to solve it througly :
1.2*10<2*2.8*10<4/4*1.4

Answer 1

That's arithmetic D:

Answer 2

i'am weak in this area.

Answer 3

and the answer is : \[6\times10<7 m\]

Answer 4

Can you rewrite it properly..

what is dot(.) means there in between 2*2.8*10 ??

Answer 5

Use equation editor or draw tool to write that..

Answer 6

this one.what i was asking.
i know it answer.
but hav'nt understood how this calculation takes place plesae helppp

Answer 7

And what you have written there is totally different..

Answer 8

yes.
i hav'nt used the editor well.
now please tell me

Answer 9

Cancel the terms 1 by 1..

Answer 10

can u please use the equation editor to tell me please.?

Answer 11

Yes I will..

Answer 12

\[\large \frac{1.2 \times 10^{-2} \times 0.28 \times 10^{-3}}{4 \times 1.4}\]

Answer 13

now what to do?

Answer 14

See 1.2 can be written as: \(\frac{1}{2}\)

0.28 can be as: \(\frac{28}{100}\)

1.4 can be as : \(\frac{14}{10}\)

\(10^{-2}\) can be : \( \frac{1}{100}\)

\(10^{-3}\) can be : \( \frac{1}{1000}\)

Answer 15

Sorry mistake there:

1.2 can be written as : \(\frac{12}{10}\)

Answer 16

is the denominator as zero is given according to the inverse given?

Answer 17

No...

Answer 18

In case of multiplication when you cancel any terms then result is 1 not 0..

Answer 19

then how you have putten the zero's in dnominator?

Answer 20

See in case of decimals:

\[x.y = \frac{xy}{10}\]
After dot there is one term so we put 10 in denominator..

Getting??

Answer 21

& if there is x.2y then is that be =x2y/100 ?

Answer 22

similary:

for:

\[x.yz = \frac{xyz}{100}\]

There is yz after dot so we will put 100..

Answer 23

Yes absolutely correct..

Answer 24

okay.thanks.
now how shall we contineu?

Answer 25

Yes..

Answer 26

And remember:

\[\large x^{-a} = \frac{1}{x^a}\]

this is the case with \(10^{-2}\) and \(10^{-3}\)

Getting??

Answer 27

So what we get I show you after putting...

Answer 28

1/10squr. and 1/10cube?

Answer 29

\[\large \implies \frac{\frac{12}{10} \times \frac{1}{100} \times \frac{28}{100} \times \frac{1}{1000}}{4 \times \frac{14}{10}}\]

Getting??

Answer 30

yes..now please contineu

Answer 31

See now you can bring 10 0r 100 or 1000 which are in numerator to the denominator and which are in denominator can be brought back to numerator..

Like this:

\[\large \implies \frac{12 \times 28 \times 10}{ 10 \times 100 \times 100 \times 1000 \times 4 \times 14}\]

Answer 32

which terms from denumerator are placed in numeraor?

Answer 33

10..

Answer 34

there is 14/10 so bring the 10 above see I have multiplied in the last in the numerator..

Getting??

Answer 35

we will leave 4 and 14 still on denom.. tr?

Answer 36

@waterineyes

Answer 37

Cancel what ever is being cancelled:

\[\large \implies \frac{6 \times \cancel{10}}{10000000 \cancel0} \implies \frac{6}{10000000}\]

Answer 38

See the terms that are denominator of denominator can be brought to numerator..

Answer 39

in denominator 10 is again denominator so bring it up..

Answer 40

Or you can remember it as:

\[\large \frac{\frac{a}{b}}{\frac{c}{d}} = \frac{a \times d}{b \times c}\]

Answer 41

how u brought 6/10000000

Answer 42

Now back:

\[\implies \frac{6}{10000000} \implies \frac{6}{10^7}\]

Answer 43

you got its previous step of not??

\[\implies \frac{6 \times 10}{100000000}\]

Is it clear to you??

Answer 44

yes.
but how it came?