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hey =). ok so give an example problem to give me an idea of what you're struggling with
Well, I am Comparing and Ordering fractions, Mixed Numbers, and Decimals.
5 1/3 and 6.7
Can you explain it to me.
hahahah homeworkhelpgirl... made a new account
so 5 1/3 means 5 , and then 1/3 of 1
in decimal form, that means 5.333333333
Remember I am only in the 5th grade,,,,
sandra can you help me with regression when you're finished please?
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)
sorry briibaby, too advanced for me!
another way to compare them is to turn them both into fractions
but let's see some other sample problems too
for example, what is bigger, 1/2 or 1/3?
nope, it's just the bottom number is bigger. let me show you how to compare
to compare fractions, it helps to find what's called a common denominator
for example, if I asked you what's bigger, 1/3, or 2/3, what would you say?
Wait :) I have some numbers with decimals with them!
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)
but go ahead and post another example with decimals
How do convert fractions into decimals?
well, it's easiest to make it so some power of 10 is on the bottom
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
I don't understand.
well, 1/10 is another way of writing "one divided by ten"
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
so 1 divided by 10 is .1
2 divided by 10 is .2
I just move the point one to the left
multiplying by some power of 10 means I get to move the decimal point one to the right, and add a zero
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)
so there are two ways to compare a decimal and a fraction
one way would be to convert the fraction to a decimal - and then compare them
another way would be to convert the decimal to a fraction, and then compare those fractions
I imagine they want you to learn the second approach
now to compare fractions, as I was saying earlier, you need to find what's called a "common denominator"