how much is 15 divide by 22?
How about using a calculator?
Or
15/22 = 7.5/11
11|7.5 0.6 6.6 remainder 0.9
11|0.9 0.08 0.088 remainder 0.02
11|0.02 0.001 0.011 remaonder 0.009
0.6+0.08+0.001 = 0.681
Or
15/22 = 7.5/11
11|7.5 0.6 6.6 remainder 0.9
11|0.9 0.08 0.088 remainder 0.02
11|0.02 0.001 0.011 remaonder 0.009
0.6+0.08+0.001 = 0.681