5/8+7/9;7/30+11/36;8/11-5/12;8/11-5/8;

Question

5/8+7/9;7/30+11/36;8/11-5/12;8/11-5/8;

Answer 1

5/8+7/9=12/17:7=0,30+11=41,36:8=4 (ост.4),11-5=6,12:8=1 (ост.4),11-5=6:8=1 (ост.2)

Comments

Неправильно у вас

Answer 2

5/8+7/9=45/72+56/72=101/72=1 целая 29/72 7/30+1/36=42/180+5/180=47/180

Comments

почему? так?