Answer:
2/3
Step-by-step explanation:
You want to know what fraction 15 7/12 is of 23 3/8.
We can simplify the fraction as follows:
[tex]\dfrac{15\dfrac{7}{12}}{23\dfrac{3}{8}}=\dfrac{187}{12}\times\dfrac{8}{187}=\dfrac{8}{12}=\boxed{\dfrac{2}{3}}[/tex]