数学2道算术题,答对绝对有赏,在线等(1)46+40%+54乘以5分之2(2)4.6乘以1又8分之3除以8.4除以11分之8-1又8分之3乘以5

Question

数学2道算术题,答对绝对有赏,在线等
(1)46+40%+54乘以5分之2
(2)4.6乘以1又8分之3除以8.4除以11分之8-1又8分之3乘以5

Answer 1

(1).46+40%+54*2/5
=46+0.4+21.6
=68
(2)4.6*(1+3/8)/8.4/(8/11)-(1+3/8)*5
=23/5*11/8*(5/42) *(11/8)-5*11/8
=(253/336-5)*11/8
=-(5+2257/2688)
=负5又2688分之2257