Вступ до алгебри » 2
Чому дорівнює значення виразу: 1) 1^(\2)/3 + 5/6 = (2 + 5)/6 = 7/6 = 11/6; 3) 7/16 ∙ 8/35 = (1 • 1)/(2 • 5) = 1/10; 1) 3^(\9)/7 – 2^(\7)/9 = (27 - 14)/63 = 13/63; 4) 4/9 ∙ 18 = (4 • 18)/9 = 8; 5) 46/75 : 23/45 = 46/75 ∙ 45/23 = (2 • 3)/(5 • 1) = 6/5 = 11/5; 6) 2/3 : 4 = 2/3 ∙ 1/4 = 1/6; 7) 10 : 5/11 = 10/1 ∙ 11/5 = 22; 8) 23^(\3)/8 + 41^(\4)/6 = 6(9 + 4)/24 = 613/24; 9) 6 – 13/5 = 6 – 1,6 = 4,4; 10) 42/7 – 14/9 = 39^(\9)/7 – 14^(\7)/9 = 2(81 - 28)/63 = 253/63; 11) 83/4 ∙ 13/14= 35/4 ∙ 17/14 = 85/8 = 105/8; 12) 13/5 : 51/3 = 8/5 : 16/3 = 8/5 ∙ 3/16 = 3/10.