וְעִשָּׂרׄוֹן֙ עִשָּׂר֔וֹן לַכֶּ֖בֶשׂ הָאֶחָ֑ד לְאַרְבָּעָ֥ה עָשָׂ֖ר כְּבָשִֽׂים׃
and a several tenth part for every lamb of the fourteen lambs;
Related passages and cross-references for Numbers 29:15 across the Tanakh: find parallel verses and echoes, free.