=-3/4÷[(-6)*(-4/9)]
=-3/4÷8/3
=-3/4*3/8
=-9/32
(5 out of 12-7 out of18) ÷ (5 out of 36)
=(5/ 12-7/ 18)÷(-5/36)
=5/ 12*(-36/5)+7/ 18*36/5
=-3+ 14/5
=- 1/5
2: 1 ÷ (-2: 3)
= 1/2*(-2/3)
=- 1/3
(-1 .25) 4 o'clock1
=-5/4*4
=-5
7/3 (-0.35)
=7/3÷(-7/20)
=7/3*(-20/7)
=-20/3
(-3.5) 7 out of 8 (4 out of-3)
=-7/2÷[7/8*(-3/4)]
=-7/2÷(-2 1/32)
=-7/2*(-32/2 1)
= 16/3
(- 1/4)÷(-2/3)÷(-5/8)
=- 1/4÷(2/3*5/8)
=- 1/4÷5/ 12
=- 1/4* 12/5
=-3/5
(- 189)÷(-9)÷7
=- 189÷(-9*7)
= 189÷63
=3
(-0.75)÷65438+5/06÷(- 1.2)
=-3/4÷(-6/5*5/ 16)
=-3/4÷(-3/8)
=3/4*8/3
=2