Fraction multiplication problem? I do NOT know how they got this answer. I posted the problem in the replies as an attachment.

Question

starfireandrobin · Answer

attachment

starfireandrobin · Answer

@MissSmartiez

moldybubblegum11 · Answer

@AloneS @Awolflover1 @sammixboo @welshfella 
i dont know this one star

awolflover1 · Answer

$$\frac{ 3 }{ 8 }\times \frac{ -10 }{ 9 }$$
 

@563blackghost can you help i dunno if im doing this right lol

563blackghost · Answer

We are given...

$\huge{\frac{3}{8} \times \frac{-10}{9}}$

To multiply the two we simply multiply across so...

$\huge\color{red}{\frac{3~ \times~ -10}{8 ~\times ~9}}$

563blackghost · Answer

What would that simplify to?

563blackghost · Answer

Were you able to get it @StarfireAndRobin? (by the way love the pic xD).

starfireandrobin · Answer

I think that that would simplify to -30/72, right? @563blackghost

starfireandrobin · Answer

(And thank you!! :D)

563blackghost · Answer

Correct :) 

So we know it equals to $\Large{\frac{-30}{72}}$ But we need to simplify it all the way...

So we find a factor that 30 and 72 share...

72:1,2,3,4,6,8,9,12,18,24,36,72
30: 1,2,3,5,6,10,15,30

What factor do they share?

(Your very welcome :) )

563blackghost · Answer

Im sorry but I have to go :( But ill leave the explanation :)

With the list set we see that they share the factor 6 so we will divide the top and bottom of the fraction by 6...

$\huge{\frac{-30 \div 6}{72 \div 6}\rightarrow \frac{-5}{12}}$

So we simplify that and find that the product of the two fractions is -5/12

563blackghost · Answer

Good luck with the rest of your work ;)

starfireandrobin · Answer

Thank you so much @563blackghost !!! Wonderful explanation and now I understand/remember what to do. Thank you!