Question

выполните действия: 1) (13.5+1,8) х 12; 2) (6-4 815):2,2

Answer 1

1) =( 10/35 + 9/5 ) *1/2= ( 10/35 + 63/35 ) *1/2= 73/35 *1/2= 73/70 = 13/70
2)=1 7/15 *10/22 =22/15 *10/22 =2/3