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Please explain how you got the answer

2007-01-25 12:51:15 · 12 answers · asked by mcswain_jamie 1 in Education & Reference Homework Help

12 answers

How many centimeters in one meter? 100
You have 40 of them so it is 40/100.
If you have to reduce you take the last zero off.
Any number that ends in 0 can be divided by 10.
So now you have 4/10. You can still reduce that to 2/5.
Now you owe me 2 points...oh thanks.

2007-01-25 12:57:07 · answer #1 · answered by Mr. Sir 5 · 3 0

A centimeter is 1/100th of a meter.

Therefore,

40 cm is 4/10 or 2/5 of a meter.

2007-01-25 12:54:58 · answer #2 · answered by morgulis2003 3 · 0 0

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Oh, Amy, these are so easy but, clearly, not to you! To express these fractions as a mixed number, you must divide the top number (the numerator) by the bottom number (the denominator). a) nine sixths = 9/6. 6 divides into 9 1 time and there is 3 left over, so we now have 1 3/6 We can cancel down further if the top and bottom numbers have a common denominator, in this case it is 3. Divide the top and bottom numbers by 3 to get 1 1/2 So the answer to a) is 1 1/2 (One and a half) Try the rest of Q1 for yourself. Clock question: a) 8:15 - 9:45 Time difference is 1 and a half hours. Since a full turn of the minute hand is 1 hour, or 60 minutes, for 1 1/2 hours the minute hand goes through 1 1/2 turns. You could answer this by converting the time difference to minutes, expressing as a fraction in 60th's (minutes in an hour) then writing as a mixed number. e.g. a) 8:15 - 9:45 Total minutes = 90 Fraction 90/60# Following the rule in Q1 we get 1 30/60, which cancels down to 1 1/2 fraction of a metre: a) 675/1000 (1000 cm in a metre) Cancel down by dividing by 25 to get 27/40 fraction of a kilogram b) 4450/1000 (1000g in a Kg) Follow the steps in Q1 to get 4 450/1000 Cancel down by dividing the fraction by 50 We now get 4 9/20 To learn and understand, try the rest for yourself.

2016-03-27 02:55:43 · answer #3 · answered by Anonymous · 0 0

There are 100 cm in a meter, so 40 cm is 0.4 meters.

Or 40/100 or 2/5

2007-01-25 12:55:30 · answer #4 · answered by gpwarren98 3 · 1 0

40 Cm To M

2016-09-29 10:05:03 · answer #5 · answered by ? 3 · 0 0

Well, the word 'centi' means out of a hundred. (?/100)
So, you can assume 40 'centi' means 40/100.
Of course, you can cross out a zero on the top,(4/100)
With a zero on the bottom.(4/10)
To simplify the fraction even more ,you need to find a number that divides into 4 and 10. That number is 2.
2 divides into 4 twice.(2/?)
And 2 divides into ten 5 times. (?/5)

Which gives: 2/5

To work out the decimal, you need to times the bottom number with another number to make the bottom number 100.
As so: 2/5 = 5 x 20 equals 100.
You also need to times the top number with whatever number you have multiplied the bottom number with.
That number was 20.
As so: 5 x 20 equals 100 (?/100)
- 2 x 20 equals 40 (40/?)
=40/100


In a decimal if the number is out of a hundred, you put 0.?
Since the number we have is 40 out of 100,we need to put the number 40 after the decimal as it is not a whole number.
(40 is part of a whole (100))

As so: 0.40
But, because there is not number after the 4, you do not need the zero. It is non-significant. But you can put it if you want.
= 0.4

ANSWER : 40/100, 4/10, 40%, >2/5<, 0.4 or 0.04

Key:>< means best answer to your question.

(Just a hint: you can also put 40% as % means out of 100)

I hope I helped you because it took me a very long time to write all these facts :)

2007-01-25 14:02:54 · answer #6 · answered by Anonymous · 0 1

KILO =100
HECTA=10
DECA=1
METER=
DECI=.1
CENTI=.01
MILLI=.001

Therefore 40cm is .40 meter or 4/10 in fraction mode.

2007-01-25 12:58:45 · answer #7 · answered by rubixmaster 1 · 0 1

a) 9/6 = 1 and 1/3 {One and a third} b) 14/3 = 4 and 2/3 {Four and two thirds} c) 12/7 = 1 and 5/7 {One and five sevenths} d) 13/2 = 6 and 1/2 {Six and a half} e) 22/6 = 3 and 4/6 {Three and four sixths} f) 34/7 = 4 and 6/7 {Four and six sevenths} g) 31/3 = 10 and 1/3 {Ten and a third} h) 22/6 = 3 and 4/6 {Three and four sixths} <-- this one is the same as e) a) 1 and 1/2 {One and a half} b) 1 and 3/4 {One and three quarters} c) 2 and 2/5 {Two and two fifths} a) 6 and 3/4 {Six and three quarters} b) 42 and 1/4 {Forty two and a quarter} c) 3 and 1/10 {Three and a tenth} a) 3 and 1/3 {Three and a third} b) 4 and 9/20 {Four and nine twentieths} c) 8 and 1/2 {Eight and a half}

2016-03-18 07:42:15 · answer #8 · answered by Anonymous · 0 0

4/10

2007-01-25 12:55:57 · answer #9 · answered by dangoinvestor 3 · 0 0

This Site Might Help You.

RE:
40 cm is what fraction of a meter?
Please explain how you got the answer

2015-08-10 23:27:20 · answer #10 · answered by Gualterio 1 · 0 0

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