<prompt> Denominator in maternal moality ratio?Mid Year PopulationLive bihsTotal bihsTotal numbebr of pregnancies  <response>: Maternal moality rate is total no.of female deaths due tobcomplications of pregnancy, childbih or within 42 days of delivery from puerperal causes in an area during a given year by total no.of live bihs in the same year and area.REF.PARKS TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-514 