anonymous
  • anonymous
I need help with my fractions homework. It is 5th grade math.
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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sandra
  • sandra
hey =). ok so give an example problem to give me an idea of what you're struggling with
anonymous
  • anonymous
Well, I am Comparing and Ordering fractions, Mixed Numbers, and Decimals.
sandra
  • sandra
ok sure

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anonymous
  • anonymous
5 1/3 and 6.7
sandra
  • sandra
right, ok
anonymous
  • anonymous
Can you explain it to me.
anonymous
  • anonymous
hahahah homeworkhelpgirl... made a new account
sandra
  • sandra
so 5 1/3 means 5 , and then 1/3 of 1
sandra
  • sandra
in decimal form, that means 5.333333333
anonymous
  • anonymous
Remember I am only in the 5th grade,,,,
anonymous
  • anonymous
sandra can you help me with regression when you're finished please?
sandra
  • sandra
but conceptually, you can see that 5 1/3 is less than six, because 5 1/3 = 5 + 1/3 (which is less than one), and 6.7 means 5 + 1.7 (which is more than one)
sandra
  • sandra
sorry briibaby, too advanced for me!
anonymous
  • anonymous
What?
sandra
  • sandra
another way to compare them is to turn them both into fractions
sandra
  • sandra
but let's see some other sample problems too
sandra
  • sandra
for example, what is bigger, 1/2 or 1/3?
anonymous
  • anonymous
1/3?
sandra
  • sandra
nope, it's just the bottom number is bigger. let me show you how to compare
sandra
  • sandra
to compare fractions, it helps to find what's called a common denominator
sandra
  • sandra
for example, if I asked you what's bigger, 1/3, or 2/3, what would you say?
anonymous
  • anonymous
Wait :) I have some numbers with decimals with them!
sandra
  • sandra
ok but 2/3 is bigger than 1/3, because the top number is bigger in 2/3 than 1/3 - and they're fractions out of the same overall unit (3's)
sandra
  • sandra
but go ahead and post another example with decimals
anonymous
  • anonymous
How do convert fractions into decimals?
sandra
  • sandra
well, it's easiest to make it so some power of 10 is on the bottom
sandra
  • sandra
for example, 1/10 = .1 , 1/100 = .01, 1/1000 = .001 The rule is, you're allowed to move the decimal one to the left with each zero that's on the bottom
anonymous
  • anonymous
I don't understand.
sandra
  • sandra
well, 1/10 is another way of writing "one divided by ten"
sandra
  • sandra
and when I divide by some power of 10 - for example 10, 100, 1000, 2000, all that means is moving the decimal point one to the left
sandra
  • sandra
so 1 divided by 10 is .1
sandra
  • sandra
2 divided by 10 is .2
sandra
  • sandra
I just move the point one to the left
sandra
  • sandra
multiplying by some power of 10 means I get to move the decimal point one to the right, and add a zero
sandra
  • sandra
so 1 x 10 = 10 (added one zero), 2 x 100 = 200 (I get to add two zeros), and 6.7 x 10 = 67 (I get to move the decimal point to the right)
sandra
  • sandra
so there are two ways to compare a decimal and a fraction
sandra
  • sandra
one way would be to convert the fraction to a decimal - and then compare them
sandra
  • sandra
another way would be to convert the decimal to a fraction, and then compare those fractions
sandra
  • sandra
I imagine they want you to learn the second approach
sandra
  • sandra
now to compare fractions, as I was saying earlier, you need to find what's called a "common denominator"

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