1.22222.无限循环*1.24242424.循环+27分之19=?

题目

1.22222.无限循环*1.24242424.循环+27分之19=?

答案

1.22222.=1+2/9 = 11/9;
1.24242424.=1+24/99=1+8/33=41/33;
11/9*41/33=41/27;
41/27+19/27=60/27=20/9;