27/2 : 0,5 × 24/27 - 12

27/2 : 5/10 x 24/27 - 12
= ( 27/2 x 10/5 ) x 24/27 - 12
= ( 27 x 24/27 ) - 12
= 24 - 12 = 12

27/2 ÷ 5/10 × 24/27 -12
27/2 × 10/5 × 24/27 - 12
270/10 × 24/27 - 12
5940/270 - 12
24 - 12
12
maka hasilnya. 12
maaf jika salah