Question

Выполните деление 3\4: 5\7 ; 5\18: 25\27 ; 9\16: 3\64 ; 25\72: 45\63.

Answer 1

3\4:5\7=3/4*7/5=21/20=1 1/2; 5\18:25\27=5/18*27/25=3/10 или 0,3; 9\16:3\64=9/16*64/3=12 ; 25\72:45\63=25/72*63/45=35/72

Answer 2

$\frac{3}{4} : \frac{5}{7} = \frac{3 * 7}{4 * 5}= \frac{21}{20} \\ \\ \frac{5}{18}: \frac{25}{27} = \frac{5 * 27}{18 * 25} = \frac{3}{10} \\ \\ \frac{9}{16}: \frac{3}{64} = \frac{9 * 64}{16*3}= 12 \\ \\ \frac{25}{72}: \frac{45}{63} = \frac{25 * 63}{72 * 45} = \frac{35}{72}$