Răspuns:
4/13:8/6+7/3×5/2×[625:5/4+16:(7×3/2)-55]=1/13×6/2+7/3×5/2×(125×4+16:(-89/2)]=1/13×3+7/3×5/2×(500-16×2/89)=3/13+7/3×5/2×(500-32/89)=3/13+7/3×5/2×44468/89=3/13+778190/267=10117271/3471
Explicație pas cu pas: