1又1/8*7又7/13*8+8*11/13*1.125-112.5*13/13*0.08+4又12/13/8/9
=9/8*7又7/13*8+8*11/13*9/8-9/8*8+8*8/13*9/8
=9/8*8(7又7/13+11/13-1+8/13)
=9*8
=72
1又1/8*7又7/13*8+8*11/13*1.125-112.5*13/13*0.08+4又12/13/8/9
=9/8*7又7/13*8+8*11/13*9/8-9/8*8+8*8/13*9/8
=9/8*8(7又7/13+11/13-1+8/13)
=9*8
=72