Question

Найдите значение выражений!

Answer 1

$\frac{12}{9} \times (1 \frac{1}{2} + 2 \frac{1}{3} ) \div \frac{1}{4} + \frac{5}{9} = \\ = \frac{4}{3} \times ( 3 + \frac{1}{2} + \frac{1}{3} ) \times 4 + \frac{5}{9} = \\ = \frac{16}{3} \times 3 \frac{5}{6} + \frac{5}{9 } = \frac{16 \times 23}{3 \times 6} + \frac{5}{9} = \\ = \frac{8 \times 23 + 5}{9} = \frac{189}{9} = 21$