Решите пример 4 5/14+(5 1/12-3 4/21)= 8 9/26-z=5 - вопрос №36837145145112342189265739 от BobrovskayaVera1 16.12.2020 03:07

Question

Математика: Решите пример 4 5/14+(5 1/12-3 4/21)= 8 9/26-z=5 7/39

BobrovskayaVera1 · Answer

1)4 5/14+(5 1/12-3 4/12)=61/14+(61/12-40/12)=61/14+21/12=732/168+294/168= =1026/168=6 18/168=6 3/28 2)8 9/26-z=5 7/39 217/26-z=202/39 z=217/26-202/39 z=247/78=3 13/78=3 1/6...