Question

(5supra 6 +7supra 8)•18supra 41+1supra 4•16supra 25•(3supra 4 -1supra2 -1supra 8)

Answer 1

(5/6+7/8) × 18/41 +1/4 ×16/25 ×(3/4-1/2-1/8)=
=(20/24+21/24) × 18/41 +4/25 ×(6/8-4/8-1/8)=
=41/24 × 18/41 +4/25 ×1/8=
=18/24  +1/50 =
=3/8  +1/50 =
=75/200+4/200=
=79/200
79/200=0,395