1.126又九分之八×1又七分之二
=(126+8/9)*(9/7)
=18*9+8/7
=163又1/7
2.35又十四分之三×五分之三
=(35+3/14)*3/5
=21+9/70
=21又9/70
3.一又十分之一×17.6+36÷五分之四+26.4×1.25
=11/10*17.6+36*5/4+26.4*10/8
=19.36+45+33
=97.36
4.十一分之五+4×十一分之五+十一分之五×6
=5/11+4*5/11+5*6/11
=5/11*(1+4+6)
=5/11*11
=5