Question

А)(1-5/9 х):1/3=3/5 Б) 5/6 х-1/4 х-2/9 х-3/8=1/24 С решением!

Answer 1

$a)1 - frac{5}{9} x = frac{3}{5} times frac{1}{3} = frac{1}{5} \ frac{5}{9} x = 1 - frac{1}{5} = frac{5}{5} - frac{1}{5} = frac{4}{5}$

$x = frac{4}{5} div frac{5}{9} = frac{4}{5} times frac{9}{5} \ x = frac{36}{25} = 1 frac{11}{25}$

Б)

$frac{5}{6} x - frac{1}{4} x - frac{2}{9} x - frac{3}{8} = frac{1}{24} \ frac{5}{6} x - frac{1}{4} x - frac{2}{9} x =$

$= frac{30}{36}x - frac{9}{36}x - frac{8}{36}x = frac{13}{36} x$

$frac{13}{36} x - frac{3}{8} = frac{1}{24} \ frac{13}{36} x = frac{1}{24} + frac{3}{8} = frac{1}{24} + frac{9}{24} = frac{10}{24}$

$= frac{5}{12}$

$x = frac{5}{12}$

$x = frac{5}{12} div frac{13}{36} = frac{5}{12} times frac{36}{13} = frac{15}{13} = \ = 1 frac{2}{13}$