Question

решите дробь (2 5/6+2 2/9):3 1/4-2/9

Answer 1

$(2 \frac{5}{6} + 2 \frac{2}{9} ) \div 3 \frac{1}{4} - \frac{2}{9} = \frac{28}{9 } - \frac{2}{9} = \frac{26}{9} \\ 2 \frac{5}{6} + 2 \frac{2}{9} = \frac{17}{6} + \frac{20}{9} = \frac{51 + 40}{18} = \frac{91}{18} \\ \frac{91}{18} \div 3 \frac{1}{4} = \frac{91 \times 4}{18 \times 13} = \frac{7 \times 4}{9} = \frac{28}{9}$