5÷37=0.135135135
0.135的循环乘以1.35的循环=(5/37)^2=25/1 369
1.24242424……=1又24/99=1又8/33=41/33
0.3333333=1/3
1.24（24的循环）除以0.3（3的循环）=41/33 / 1/3=41/11