Question

a=2×(3×5:3+9×3:9):[16×2-2×(3×2×2×5-5×2×5):5-2×2×3]

Answer 1

A=2*(15:3+27:9):[32-2*(60-50):5-12]
A=2*(5+3):[32-2*10:5-12]
A=2*8:[32-20:5-12]
A=2*8:[32-4-12]
A=16:[28-12]
A=16:16
A=1