4÷3/2 =8/35/11*1/10 =1/228/9÷4 =4/90÷1/3 =03/4+2/3 17/126/11*7/6 =7/111/6*30/31 =5/3127/100*5/6 =9/403/10÷7/10 =3/71/2+1/7=9/17