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Mathematics 16 Online
OpenStudy (anonymous):

writing an improper fraction as a mix or whole number

OpenStudy (anonymous):

Well, the best way to do it is with examples. Ready?

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

Awesome. Here's an example: 1.5

OpenStudy (anonymous):

If you say it out loud, it's "One and one half", right?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

So, what two numbers are we basically adding to make that?

OpenStudy (anonymous):

?

OpenStudy (anonymous):

Read it out loud. :P

OpenStudy (anonymous):

reminder: "If you say it out loud, it's "One and one half", right?" So.... what is the obvious answer for the two numbers that we are adding?

OpenStudy (anonymous):

sorry Im terrilbe in math have to take algera class, tyring to work on cpt bok for practice been out of school a long time one and one half

OpenStudy (anonymous):

Don't worry about it :) That's why I'm here. And yeah, it's 1 and a half, you're right! Now, the slightly tricky part: what does the fraction for "one half" look like?

OpenStudy (anonymous):

bless you

OpenStudy (anonymous):

Thanks ^_^

OpenStudy (anonymous):

1/2

OpenStudy (anonymous):

Perfect! So here's what we have to do: 1 + 1/2 Now here's the problem: We can't add the two because the denominators are different. How do we turn the 1 into a fraction that equals 1? Hint: Remember that fraction is division. So 6/2 means "six divided by 2". So 6/2 would equal 3. What we need is "something over 2 equals 1" What is this 'something' that we need?

OpenStudy (anonymous):

1

OpenStudy (anonymous):

Well, if we put 1 on top of 2, we get one half. We need ?/2 = 1. What should the ? be to get 1?

OpenStudy (anonymous):

2

OpenStudy (anonymous):

or 4

OpenStudy (anonymous):

Perfect! So we would rewrite the equation as: 2/2 + 1/2 = Do you remember how to add fractions?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

It's actually 2. If you had 4/2, you'd be left with 4/2 = 2 But we needed 1.

OpenStudy (anonymous):

a little

OpenStudy (anonymous):

I just want to double check: You know *why* we did 2/2, right?

OpenStudy (anonymous):

got some on my own

OpenStudy (anonymous):

whole number

OpenStudy (anonymous):

Yup. But you know why we wanted to get a fraction that gave us 1 instead of, say, 2 or 3?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

how about this 37/5

OpenStudy (anonymous):

Well, let's get the easy example done first, before we go to harder stuff.

OpenStudy (anonymous):

So we had 1.5, which we said is equal to "one plus a half" We know that the "plus a half" is equal to 1/2. Now, we needed something with the denominator of 1/2. What is the denominator of 1/2?

OpenStudy (anonymous):

Gave up? :/

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