Запишите в виде десятичных дробей: 1) 8/80; 144/180; 102/340; 750/7500. 2) 27/135; 72/90;...

Question

Запишите в виде десятичных дробей: 1) 8/80; 144/180; 102/340; 750/7500. 2) 27/135; 72/90; 117/936; 121/44; 77/154.

Answer 1

1)
8/80 = 1/10 = 0,1;
144/180 = 4/5 = 0,8;
102/340 = 3/10 = 0,3;
750/7500 = 1/10 = 0,1.

2)
27/135 = 1/5 = 0,2;
72/90 = 4/5 = 0,8;
117/936 = 1/8 = 125/1000 = 0,125;
121/44 = 2 33/44 = 2 3/4 = 2,75;
 77/154 = 1/2 = 0,5.