Вычислите: 4.7/10 * 7/19 + 12/19 * 4.7/10(дроби )

Question

Вычислите: 4.7/10 * 7/19 + 12/19 * 4.7/10(дроби )

Answer 1

0,47!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

4.7/10 * 7/19 + 12/19 * 4.7/10=0.47*7/19+12/19*0.47=0.47*(12/19+7/19)=0.47*1=0/47