0.54/[(8.7+45.3)]*28.415.32*4+4.68/0.253.9/(1.3*5)

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0.54/[(8.7+45.3)]*28.415.32*4+4.68/0.253.9/(1.3*5)
0.54/[(8.7+45.3)]*28.4
15.32*4+4.68/0.25
3.9/(1.3*5)

0.54/[(8.7+45.3)]*28.415.32*4+4.68/0.253.9/(1.3*5)
0.54/[(8.7+45.3)]*28.4
=0.54/54*28.4
=0.01*28.4
=0.284
15.32*4+4.68/0.25
=15.32*4+4.68*4
=(15.32+4.68)*4
=20*4
=80
3.9/(1.3*5)
=3.9/1.3/5
=3/5
=0.6

0.54/[(8.7+45.3)]*28.4 15.32*4+4.68/0.25 3.9/(1.3*5)
=0.54/54*28.4 =15.32*4+4.68*4 = 3.9/1.3/5
=0.01*28.4 =4*(15.32+4.68) =3/5
=0.284 =4*20=80