Question

СРОЧНООО ПОМОГИТЕ Я ПОТОМ ВАМ ПОМОГУ
ДАЮ 5 БАЛЛОВ ПРОШУ​

Answer 1

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