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Esteven Group TitleBest ResponseYou've already chosen the best response.0
Are the denominators the same?
 2 years ago

HorseCrazyGirlForever Group TitleBest ResponseYou've already chosen the best response.1
No.
 2 years ago

Eulie Group TitleBest ResponseYou've already chosen the best response.0
www.webmath.com/addfract.html
 2 years ago

Eulie Group TitleBest ResponseYou've already chosen the best response.0
www.youtube.com/watch?v=lavgnJAkfKM
 2 years ago

Eulie Group TitleBest ResponseYou've already chosen the best response.0
those might help
 2 years ago

HorseCrazyGirlForever Group TitleBest ResponseYou've already chosen the best response.1
I don't like to watch videos because I never learn from them... :(
 2 years ago

Eulie Group TitleBest ResponseYou've already chosen the best response.0
oh sorry then
 2 years ago

Zarkon Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{a}{b}+\frac{c}{d}=\frac{a\times d+c\times b}{b\times d}\]
 2 years ago

SheldonEinstein Group TitleBest ResponseYou've already chosen the best response.2
What @Zarkon did , is said to be use of LCM ..
 2 years ago

screamincat Group TitleBest ResponseYou've already chosen the best response.0
If the denominator is not the same then you will have to find the most common one. then add the top numbers and keep the denominator same. Been awhile sence i done then.
 2 years ago

ethompsonn Group TitleBest ResponseYou've already chosen the best response.0
dw:1351266657384:dw
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
\[{\heartsuit \over \spadesuit}+{\diamondsuit \over \clubsuit} = {\heartsuit\clubsuit + \diamondsuit \spadesuit \over \spadesuit \clubsuit}\]
 2 years ago

SheldonEinstein Group TitleBest ResponseYou've already chosen the best response.2
LCM > Least common multiple just like I want to give you an example of LCM in addition of fractions : \[\large{\frac{3}{4} + \frac{4}{5} = ?}\] Now, to add these fractions , we need to take LCM of the denominators of both of the fractions... i.e. of 4 and 5 Multiples of 4 = 4,8,12,16,20,32,36,40 .... Multiples of 5 = 5,10,15,20,25,30,35,40... Common multiples = 20, 40 , ... Least common multiple = 20 So from this we get LCM of 4 and 5 is 20 Now divide 20 by 4 , you get 5, multiply 5 by the numerator of the first fraction i.e. 5 * 3 = 15 .Similarly for second fraction, divide 20 by 5, you get 4, multiply 4 by 4 = 16 \[\large{\frac{5*3 + 4*4}{20} = \frac{15+16}{20} = \frac{31}{20} }\]
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
Although, you can straightforwardly add the numerators if the denominators are same.
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
Why we use LCM is to get to a point where we can straightforwardly add the numerators.
 2 years ago

HorseCrazyGirlForever Group TitleBest ResponseYou've already chosen the best response.1
SO what would 4/3 + 7/6 =
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
Get a common denominator.
 2 years ago

SheldonEinstein Group TitleBest ResponseYou've already chosen the best response.2
Instead of LCM you can also do "common denominators" : \[\large{\frac{4}{3} + \frac{7}{6} = ? }\] Let us take 4/3 first : multiply denominators and numerators by 2 \[\large{\frac{4\times 2}{3\times 2} = \frac{8}{6}}\] So, we can also write 4/3 as : 8/6 Now let us take L: 7/6 See we have to get common denominators in both the fractions. we have one fraction as 8/6 and another one is 7/6 Their denominators are same i.e. 6 so we can just add numerators "now" : \[\large{\frac{8}{6} + \frac{7}{6} = \frac{8+7}{6} = \frac{15}{6}}\]
 2 years ago

SheldonEinstein Group TitleBest ResponseYou've already chosen the best response.2
Note: Don't add denominators, only numerators are to be added.
 2 years ago

SheldonEinstein Group TitleBest ResponseYou've already chosen the best response.2
@HorseCrazyGirlForever I hope you got it now, any confusion you have now?
 2 years ago
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