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Calculeaza 3/7×2/5+3/7×3/4=

Răspuns :

Răspuns:

Explicație pas cu pas:

3/7 x 2/5 + 3/7 x 3/4 = 3/7 x (2/5 + 3/4) = 3/7 x (8/20 + 15/20) = 3/7 x 23/20

= 69/140