twelve and nine tenths/one hundred and twenty nine over ten/12.9
eleven and twenty three over twenty four.
Twenty-three
5 over 18
13
five over nine
There is no meaningful question in "three over five y plus one over nine". There cannot, therefore, be an answer.
twelve and nine tenths/one hundred and twenty nine over ten/12.9
5 over 55
eleven and twenty three over twenty four.
Twenty-three
5 over 18
13
One.
It is one and nine twentieths.
1/4 + 3/9 = 9/36 + 12/36 = 21/36 = 7/12
11/18.