1.=(9*5+3/5)÷(3*5+1/5)-(1*8+5/8)+55/64÷5/8 =48/5 ÷ 16/5 -13/8 +55/64 ÷5/8
=48/5 X 5/16-13/8+55/64 X 8/5=3-13/8+11/8=24/8-13/8+11/8=11/4
2.=38又7/18-56/5 X 10/3 + 1X5/3 -1/2 =38又7/18 - (112/...
1.=(9*5+3/5)÷(3*5+1/5)-(1*8+5/8)+55/64÷5/8 =48/5 ÷ 16/5 -13/8 +55/64 ÷5/8
=48/5 X 5/16-13/8+55/64 X 8/5=3-13/8+11/8=24/8-13/8+11/8=11/4
2.=38又7/18-56/5 X 10/3 + 1X5/3 -1/2 =38又7/18 - (112/...