вычислите применяя распределительное свойство умножения

1) 3 3/4*(1 2/3 + 1/3) = 3 3/4 * 2 = 6 3/4

2) 1 2/5*(2 5/7 - 3/14) = 1 2/5 * ( 2 10/14 - 3/14) = 1 2/5* 2 7/14 = 1 2/5* 2 1/2 =               =  7/5*5/2  = 7/2 = 2 1/2

3) 1/9*(1 5/6 - 1 1/3) = 1/9* (1 5/6 - 1 2/6) = 1/9*3/6= 1/9*1/2=1/18

4) 3/5*(1 3/8 - 1/8) = 3/5* 1 2/8 = 3/5*1 1/4 = 3/5*5/4 = 3/4