((253.26/6.3-31.7)* 8 3/5 +7 2/5)*32 3/5=
((253.26/6.3-31.7)* 8 3/5 +7 2/5)*32 3/5=(40.2-31.7)* 8 3/5 +7 2/5)*32 3/5=
=8.5* 8 3/5 +7 2/5)*32 3/5=8 5/10*8 3/5 +7 2/5)*32 3/5=(7 3/10+7 2/5)*32 3/5=
=147/10*32 3/5=466.18