Răspuns :
18/5:[(9/8×24/35):81/7]=
= 18/5:((9×3/35)×7/81)=
= 18/5 : ( 27/35×7/81)=
= 18/5:(1/5×1/3) =
= 18/5:1/15 = 18/5×15 =
= 18×3=54
= 18/5:((9×3/35)×7/81)=
= 18/5 : ( 27/35×7/81)=
= 18/5:(1/5×1/3) =
= 18/5:1/15 = 18/5×15 =
= 18×3=54
18/5 : [(9/8×24/35) : 81/7]= simplificăm pe 24 cu 8 = 18/5:((9×3/35)×7/81)=
= 18/5:((9×3/35)×7/81)=
= 18/5 : ( 27/35×7/81)=simplificăm pe 35 cu 7= 18/5:(1/5×1/3) =
= 18/5:1/15 = 18/5×15 =
= 18×3=54
Sper că te-am ajutat!