Question

риши пропорцию b:11/12=4/7:44/7

Answer 1

Ответ:

b:11/12=4/11:44/11

b*44/11=11/12*4/11

b*44/11=1/3

b=1/3:44/11

b=1/3*11/44

b=11/132

b=1/12

Answer 2

$b:\frac{11}{12}=\frac{4}{7}:\frac{44}{7}\\\frac{b}{\frac{11}{12}}=\frac{\frac{4}{7}}{\frac{44}{7}}\\\frac{12b}{11}=\frac{4}{44}\\\frac{12b}{11}=\frac{1}{11}\\12b=1\\b=\frac{1}{12}$