Question

выполните ДЕЙСТВИЯ (ДЕЙСТВИЯ)
1). (1/12+1/6):(3/8-1/4)
2). (1-4/9):(1/3-1/4)

Answer 1

1)(1/12+2/12)÷(3/8-2/8)=3/12÷1/8=3/12×8/1=24/12=2
2)(1-4/9)÷(1/3-1/4)=5/9÷(4/12-3/12)=5/9÷1/12=5/9×12/1=60/9=6,6/9