98*19/20+19/20*2
=(98+2)*19/20
=100*19/20
=95
25*37*4
=(25*4)*37
=100*37
=3700
(8/13+1/27)*13+2/27
=8+13/27+2/27
=8+(13/27+2/27)
=8+5/9
=77/9
98*19/20+19/20*2
=(98+2)*19/20
=100*19/20
=95
25*37*4
=(25*4)*37
=100*37
=3700
(8/13+1/27)*13+2/27
=8+13/27+2/27
=8+(13/27+2/27)
=8+5/9
=77/9