Выполнить деление дробей 2/5 : 5/7 1/4: 1/2 2: 1/7 - вопрос №736985925571412217423492573143 от Варька111111111 07.08.2020 02:20

Question

Математика: Выполнить деление дробей 2/5 : 5/7 1/4: 1/2 2: 1/7 4: 2/3 4/9: 2 5/7: 3 1/4: 3 1/2 3 1/2: 2 1/3

Варька111111111 · Answer

2/5 : 5/7 = 2/5 * 7/5 = 14/251/4 : 1/2 = 1/4 * 2/1 = 2/4 = 1/22 : 1/7 = 2 * 7/1 = 144 : 2/3 = 4 * 3/2 = 12/2 = 64/9 : 2 = 4/9 * 1/2 = 4/18 = 2/95/7 : 3 = 5/7 * 1/3 = 5/211/4 : 3 1/2 = 1/4 : 7/2 = 1/4 * 2/7 = 2/28 = 1/143 1/2 : 2 1/3 = 7/2 : 7/3 = 7/2 * 3/7 = 3/2 = 1 1/2...