Question

выполните умножение! 3/7*2 3*1/6 9*5/6 2/5*15 1/4*4 5*1/5 8*3/8 6*3/4

Answer 1

$frac{3}{7}*2= frac{3*2}{7}= frac{6}{7}$
$3* frac{1}{6}= frac{3}{6}= frac{1}{2}$
$9* frac{5}{6}= frac{9*5}{6}= frac{15}{2}= 7 frac{1}{2}$
$frac{2}{5}*15= frac{2*15}{5}=2*3=6$
$frac{1}{4}*4= frac{4}{4}=1$
$5* frac{1}{5}= frac{5}{5}=1$
$8* frac{3}{8}= frac{8*3}{8}=3$
$6* frac{3}{4}= frac{6*3}{4}= frac{9}{2}=4 frac{1}{2}$