Решите дроби(10 9/14 - 4 1/2 ) + 2/3( 7 2/9 + 1 - вопрос №114055841091441223729179518125143 от karrygreenk 13.12.2020 10:24

Question

Математика: Решите дроби(10 9/14 - 4 1/2 ) + 2/3( 7 2/9 + 1 7/9 ) ∙ 5/18( 1 2/5 - 1/4 ) + 3 9/10

karrygreenk · Answer

(10 9/14 - 4 1/2) + 2/3= 10 27/42 - 4 21/42 + 28/42 = 6 34/42(7 2/9 + 1 7/9) * 5/18 = 9 * 5/18 = 45/18 = 2 9/18 = 2 1/2(1 2/5 - 1/4) + 3 9/10 = 1 8/20 - 5/20 + 3 18/20 = 5 1/20...