Вычислите (6 12/15-2 8/10) + (3 5/15+8/14/20 - вопрос №6121528103515814204810359 от кор17 06.01.2021 08:43

Question

Математика: Вычислите (6 12/15-2 8/10) + (3 5/15+8/14/20

кор17 · Answer

( 6 12/15 -2 8/10) + (3 5/15 + 8 14/20) = 16 1/30
1) 6 12/15 - 2 8/10 = 102/15 - 28/10 = 34/5 -14/5= 20/5 =4
2) 3 5/15 + 8 14/20 = 50/15 +174/20 = (200+522) /60 = 722/60= 361/30 = 12 1/30
3) 4+ 12 1/30 = 16 1/30