Question

Выполните деление:
1) 3/7÷5/6
2)3/14÷2/21
3)7/16÷42/43
4)3/4÷21/40
5)9/25÷27/50
6)45/56÷63/64
7)2/3÷1/6
8)65/98÷26/49
СРОЧНО!

Answer 1

$1) frac{3}{7} : frac{5}{6} = frac{3}{7} * frac{6}{5} = frac{18}{35} \ \ 2) frac{3}{14} : frac{2}{21} = frac{3*21}{14*2} = frac{3*3}{2*2} = frac{9}{4} =2.25 \ \ 3) frac{7}{16} : frac{42}{43} = frac{7*43}{16*42} = frac{1*43}{16*6} = frac{43}{96} \ \ 4) frac{3}{4} : frac{21}{40} = frac{3*40}{4*21} = frac{1*10}{1*7} = frac{10}{7} =1 frac{3}{7}$

$5) frac{9}{25} : frac{27}{50} = frac{9*50}{25*27} = frac{1*2}{1*3} = frac{2}{3} \ \ 6) frac{45}{56} : frac{63}{64} = frac{45*64}{56*63} = frac{5*8}{7*7} = frac{40}{49} \ \ 7) frac{2}{3} : frac{1}{6} = frac{2*6}{3} =2*2=4 \ \ 8) frac{65}{98} : frac{26}{49} = frac{65*49}{98*26} = frac{65}{2*26} = frac{65}{52} =1.25$