Question

72/77×(2/36+5/12+14/48)-10/35=
​

Answer 1

Răspuns:

$\bf\pink{\frac{3}{7}}$

Explicație pas cu pas:

$\frac{72}{77}\times(\frac{\not2}{\not36}+\frac{5}{12}+\frac{\not14}{\not48})-\frac{10}{35}=\\=\frac{72}{77}\times(^{4)} \frac{1}{18}+^{6)} \frac{5}{12}+^{3} \frac{7}{24}) -\frac{10}{35}=\\=\frac{72}{77}\times\frac{4+30+21}{72}-\frac{10}{35}=\\=\frac{\not72}{\not77}\times\frac{\not55}{\not72}-\frac{10}{35}=\\=\frac{1}{7}\times5-\frac{10}{35}=\\=\frac{5}{7}-\frac{10}{35}^{(5} =\\=\frac{5}{7}-\frac{2}{7}=\\=\bf\pink{\frac{3}{7}}$