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Jusaquikie Group TitleBest ResponseYou've already chosen the best response.1
you have to get the same denominator, so let's see what numbers 8 and 5 will both go into. 8*5=40 and i don't see a lower number they will both divide into. so to make 3/8 into ?/40 we have to multiply the top by the same as we needed to multiply the bottom to get 40. \[\frac{ 3*5 }{8*5 } = \frac{ 15 }{ 40}\] and \[\frac{ 2*8 }{8*5 } = \frac{ 16 }{ 40}\] so \[\frac{15 }{ 40 }+\frac{ 16 }{ 40 }=\frac{ 31 }{ 40 }\]
 one year ago

tmead84 Group TitleBest ResponseYou've already chosen the best response.0
oh. so you have to get lcd for both. ok. thanks
 one year ago

Jusaquikie Group TitleBest ResponseYou've already chosen the best response.1
yes, good luck
 one year ago
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