Question

9/10×(1 5/9-4/9÷(5/8+3/8÷3)) решите пожалуйста!!

Answer 1

$1) frac{3}{8} div 3 = frac{3}{8} times frac{1}{3} = frac{3 times 1}{8 times 3} = frac{3}{24} = frac{1}{8}$
$2) frac{5}{8} + frac{1}{8} = frac{5 + 1}{8} = frac{6}{8} = frac{3}{4}$
$3) - frac{4}{9} div frac{3}{4} = - frac{4}{9} times frac{4}{3} = - frac{4 times 4}{9 times 3} = - frac{16}{27}$
$4)1 frac{5}{9} - frac{16}{27} = frac{1 times 9 + 5}{9} - frac{16}{27} = frac{14}{9} - frac{16}{27} = frac{3 times 14}{3 times 9} - frac{1 times 16}{1 times 27} = frac{42}{27} - frac{16}{27} = frac{42 - 16}{27} = frac{26}{27}$
$5) frac{9}{10} times frac{26}{27} = frac{9 times 26}{10 times 27} = frac{234}{270} = frac{13 times 18}{15 times 18} = frac{13}{15}$