[tex] \frac{5}{24} + \frac{7}{36} - \frac{1}{48}= \frac{6*5+7*4-3*1}{144} = \frac{30+28-3}{144} = \frac{55}{144} =0,39[/tex]
[tex]24= 2^{3}*3 [/tex]
[tex]36=3 ^{2} *2 ^{2} [/tex]
[tex]48= 2^{4} *3[/tex]
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[24,36,48]=[tex] 2^{4} * 3^{2} =144[/tex]
Prima fractie o amplifici cu 6, a doua fractie o amplifici cu 4 si pe a treia fractie cu 3
