8/9+4.56+1/9+5.44.
问题描述：
8/9+4.56+1/9+5.44.
5T啊 要快啊~~
①8/9+4.56+1/9+5.44
②5/8×0.25×4/5×4
③4/15×[3/4-(7/16-1/4)]
④11/9-5/8-3/8
⑤（2/3+1/4）÷7/6+2/7
谢谢各位鸟~~~
答
1:(8/9+1/9) + (4.56+5.44) =1+10=11
2:5/8*1/4 *4/5 *4 =(5/8*4/5) * (1/4*4)=4/8=1/2
3:4/15 * (3/4+1/4 -7/16)=4/15 * 9/16=3/20
4: 11/9-(5/8+3/8)=2/9
5: (2/3+1/4)*6/7+2/7=4/7+3/14+2/7=15/14