 
<translate> Enwere 5 x 1 / 2 = 10 ọkara hamburgers emere site na 5 hamburgers dum. Ndị enyi nke mbụ na nke abụọ nke Era nwetara 1 + 2 = 3 ibe ọnụ. Ndị enyi ya nke atọ na nke anọ wetara 3 + 3 = 6 n'otu. Ndị enyi anọ nke Era nwetara 3 + 6 = 9 iberibe. N'ihi ya, Era na-ekpe na 10 - 9 = 1 ibe. Ya mere azịza ya bụ 1. <eng> There are 5 x 1 / 2 = 10 halves of burgers made from 5 whole burgers. Era's first and second friends got 1 + 2 = 3 slices together. Her third and fourth friends got 3 + 3 = 6 slices together. Era's four friends got 3 + 6 = 9 slices. So, Era is left with 10 - 9 = 1 slice. So the answer is 1. 