a=[(0,2)³ × 10⁴] /324 : (8³ × 15)/12⁵ =
=[(2/10)³ × 10⁴ ]/(2²×3⁴) : (2⁹ × 3×5)/(2¹⁰×3⁵) =
=(2³ ×10 /2²×3⁴ : 5/(2×3⁴) =
=(2² ×5 /3⁴ × (2×3⁴)/5=
=2³
b=23,7 - 3²+5,9:0,59-2,1:3=
=23,7 - 9+10-0,7=
=23,7 - 9,7 +10=
=14 +10=24=2³×3
c.m.m.m.c=2³×3 =24
c.m.m.d.c=2³ =8
