Jenniesfxxask
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(15/9:16/9):(1+1/12)

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Răspuns :

Slavitescudoraask

(15/9 * 9/16): (1+1/12) = 15/16 : (12/12 + 1/12) = 15/16: 13/12 = 15/16 * 12/13 = (15*3)/(4*13) = 45/52

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