Question

выполните действие 1) (8/11+3/22) 3) 1 7/12:(3/8+5/12) 4)17/36:(7/12-5/9) 5) (3/14+5/7):3 5/7 6)19/24:(3/16+5/24)

Answer 1

1.
$frac{8}{11} + frac{3}{22} = frac{16}{22} + frac{3}{22} = frac{19}{22}$
3.
$1 frac{7}{12} div ( frac{3}{8} + frac{5}{12} ) = frac{19}{12} div ( frac{9}{24} + frac{10}{24} ) = \ frac{19}{12 } div frac{19}{24} = frac{19}{12} times frac{24}{19} = 2$
4.
$frac{17}{36} div ( frac{7}{12} - frac{5}{9} ) = frac{17}{36} div ( frac{21}{36} - frac{20}{36} ) = \ frac{17}{36} div frac{1}{36} = frac{17}{36} times frac{36}{1} = 17$
5
$( frac{3}{14} + frac{5}{7} ) div 3 frac{5}{7} = ( frac{3}{14} + frac{10}{14} ) div frac{26}{7} = \ frac{13}{14} times frac{7}{26} = frac{1}{4}$
6.
$frac{19}{24 } div ( frac{3}{16} + frac{5}{24}) = frac{19}{24 } div ( frac{9}{48} + frac{10}{48} ) = \ frac{19}{24 } div frac{19}{48} = frac{19}{24} times frac{48}{19} = 2$

Answer 2

спасибо