Question

1 efectuati calculele a) 2 supra 7 + 5 supra 7 b) 3 supra 11 + 6 supra 11 + 2 supra 11​

Answer 1

Răspuns:

salut!

Explicație:

2 5 7/7

_ + _ =

7 7

3/11+6/11+2/11=11/11

Answer 2

Salutare!:)

$a) \\ \frac{2}{7} + \frac{5}{7} = \frac{2 + 5}{7} = \frac{7}{7} = 7 \div 7 = 1 \\ \\ b) \\ \frac{3}{11} + \frac{6}{11} + \frac{2}{11} = \frac{3 + 6 + 2}{11} = \frac{11}{11} = 11 \div 11 = 1$