My Math Forum Can someone explain this to me please?

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

September 24th, 2015, 04:27 AM   #11
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Quote:
 Originally Posted by sadmath Ok now I get it it is negative because the positive one is smaller than the negative right? that's the kind of explanation im finding thank you now my classmates wont tease me anymore
It is negative because:

$\displaystyle -\frac{21}{24} + \frac{20}{24} = \frac{-21 + 20}{24} = -\frac{1}{24}$

September 24th, 2015, 08:17 AM   #12
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 Originally Posted by LearnMathsFree It is negative because: $\displaystyle -\frac{21}{24} + \frac{20}{24} = \frac{-21 + 20}{24} = -\frac{1}{24}$
Yah! I get it now thank you!

September 24th, 2015, 08:29 AM   #13
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 Originally Posted by sadmath Yah! I get it now thank you!
No problem. I have a video of my own where I demonstrate how to add two fractions, even if the denominators happen to be different: https://www.youtube.com/watch?v=ywycowKlgDg

September 24th, 2015, 10:20 AM   #14
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 Originally Posted by LearnMathsFree No problem. I have a video of my own where I demonstrate how to add two fractions, even if the denominators happen to be different: https://www.youtube.com/watch?v=ywycowKlgDg
Okay, I have a question can I skip arithmetic and jump to algebra 1? Will you use this kind of fractions on it? Would you still do some lowest terms in algebra 1??

Last edited by sadmath; September 24th, 2015 at 10:30 AM.

September 24th, 2015, 11:31 AM   #15
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Quote:
 Originally Posted by sadmath Okay, I have a question can I skip arithmetic and jump to algebra 1? Will you use this kind of fractions on it? Would you still do some lowest terms in algebra 1??
I suppose you could, but considering you wanted to multiply instead of subtract in your original problem I'd stick with the Arithmetic for a while longer.

-Dan

September 24th, 2015, 10:34 PM   #16
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 Originally Posted by topsquark I suppose you could, but considering you wanted to multiply instead of subtract in your original problem I'd stick with the Arithmetic for a while longer. -Dan
Okay thank you

 September 26th, 2015, 06:05 PM #17 Senior Member   Joined: May 2015 From: Varanasi Posts: 110 Thanks: 5 Math Focus: Calculus negative negative product becomes positive and then you subtract 7/8 from 5/6, since 7/8 is bigger number so you get negative result.

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