Question

9/20умножить2/3+5/14умножить7/25

Answer 1

9/20*2/3+5/14*7/25+
6/20+1/10=8/20=0.4

Answer 2

$\frac{9}{20} * \frac{2}{3}+ \frac{5}{14}* \frac{7}{25} = \frac{18}{60} + \frac{35}{350} = \frac{1}{10} + \frac{1}{100} = \frac{11}{100}$