Since it's Thanksgiving week, let's think about pie for a second. No, not mathematical pi, just actual real edible pies. For Thanksgiving I'm in charge of making dessert, so I'll be bringing two pies, one pumpkin and one apple. Let's say that I sliced the apple pie into 12 pieces, and the pumpkin pie, since it held together better, into 18.
Fast forward to the end of the evening...
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i have a problem solving this

how do you find the lcd to 78 - 1/4????? Help

How to Find Common Denominators
If you are trying to
add or subtract fractions with different denominators, you’ve come to the right place! In order to add or subtract fractions, we have to have common denominators. Sometimes, though, you’re given a problem that looks like this:
Those are definitely not common denominators! In order to get the denominators the same, follow...
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Expanding and Reducing Fractions
Two things you might be asked to do are expand and reduce (or simplify)
fractions. Expanding a fraction means making it "bigger" while reducing a fraction means making it "smaller."
Expanding Fractions
Expanding fractions means making them "bigger." For example, let's say you ate 3/8 of that pizza, but your friend...
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used lowest common denominator to find x

I have three problems that I can't completely figure. I appreciate any help and explanations!
17 - 6 ...

I can't seem to get past this problem...
2x + 5
3x x-8
For...

Using the LCD to write equivalent fractions. then compare using <>or =