Question

Calculați 3 supra 11+4supra3+7supra12

Answer 1

Explicație pas cu pas:

$\frac{3}{11} + \frac{4}{3} + \frac{7}{12} = \\ \\ \frac{3}{11} + \frac{4}{3} = \frac{3 \times 3}{11 \times 3} + \frac{4 \times 11}{3 \times 11} = \frac{9}{33} + \frac{44}{33} = \frac{9 + 44}{33} = \frac{53}{33} \\ \\ \frac{53}{33} + \frac{7}{12} = \frac{53 \times 4}{33 \times 4} + \frac{7 \times 11}{12 \times 11} = \frac{212}{132} + \frac{77}{132} = \frac{212 + 77}{132} = \frac{289}{132} = 2 \frac{25}{132}$

Answer 2

Răspuns:

1. 3supra 11+4supra3+7supra12=1 ,20 supra33+7supra2=2,25 supra132