Question

Решите уравнения: а) х-5/9х=2.1/4 б) 3/8:3/11=а: 2.1/11

Answer 1

$\frac{4}{9}*x = 2 \frac{1}{4} \\ \frac{4}{9}*x = \frac{9}{4} \\ x = \frac{9}{4} : \frac{4}{9} = \frac{9}{4} * \frac{9}{4} = \frac{81}{16}$