Question

1/2c+1/3c+1/6c=(1/2+1/3+1/6)

Answer 1

1/2с+1/3с+1/6с=(1/2+1/3+1/6)
3/6с+2/6с+1/6с=(3/6+2/6+1/6)
1с=1
с=1

Answer 2

Общий знаменатель:6 1/2c+1/3c+1/6c =6/6c =1c