Question

Вычислите:

а) 1/3*(3/5*5/7)+1/3*(5/9*9/7);

б) 7/3*6/17+1/8:17/6:

Answer 1

а.(4.5:1/5-5/8:0.75)*2.3-3=
1)4.5:0.2=22.5;
2)0.625:075=