Question

СРОЧНООО ПОМОГИТЕ Я ПОТОМ ВАМ ПОМОГУ
ДАЮ 5 БАЛЛОВ ПРОШУ​

Answer 1

$\frac{ \frac{8}{3} \times \frac{15}{4} - \frac{41}{8}}{ \frac{21}{13} \times \frac{13}{42} \div \frac{1}{3} } = 3.25 \\ 1) \frac{8}{3} \times \frac{15}{4} = \frac{10}{1} \\ 2) \frac{10}{1} - \frac{41}{8} = \frac{80 - 41}{8} = \frac{39}{8} \\ 3) \frac{21}{13} \times \frac{13}{42} = \frac{1}{2} \\ 4) \frac{1}{2} \times \frac{3}{1} = \frac{3}{2} \\ 5) \frac{39}{8} \div \frac{3}{2} = \frac{39}{8} \times \frac{2}{3} = \frac{13}{4} = 3.25 \\ 2)1) \frac{2}{3} \times \frac{4}{7} = 4) \frac{8}{21} \\ 2) {21} \times \frac{6}{11} = \frac{48}{231} \\ 3) \frac{2}{3} \times \frac{5}{7} = \frac{10}{21} \\ 4) \frac{10}{21} \times \frac{9}{11} = \frac{30}{77} \\ 5) \frac{48}{231} \times \frac{77}{30} = \frac{16}{30} = \frac{8}{15} \\ 3) 1)\frac{1}{2} + \frac{1}{4} = \frac{3}{4} \\ 2) \frac{3}{4} \times \frac{1}{3} = \frac{1}{4} \\ 3) \frac{1}{1} + \frac{1}{4} = \frac{5}{4} \\ 4) \frac{1}{1} - \frac{1}{4} = \frac{3}{4} \\ 5)\frac{5}{4} \times \frac{4}{3} = \frac{5}{3}$