Найдите значение выражения: 1)8 7/9-5 2/9 2)10 9/11-4 2/11 3)7 2/3-2/3 4)4 5/8-3 5)10 1/9-4 6)6 5/9-5/9 7)3-1 3/4
113
130
Ответы на вопрос:
1) 3 5/6- 1 1/6 = 2 4/6 2) 8 7/9-5 2/9 = 3 5/9 3) 10 9/11-4 2/11 = 6 7/11 4) 7 2/3-2/3 = 7 5) 4 5/8-3 =1 5/8 6) 10 1/9-4 = 6 1/9 7) 6 5/9-5/9 = 6 8) 3-1 3/4 = 2 4/4 -1 3/4 = 1 1/4
Я заменю дробную черту на знак деления.
1) 1 2/3 : 2 1/2 = 5/3 : 5/2 = 5/3 • 2/5 = 2/3
2) 12 : 1 1/5 = 12 : 6/5 = 12 • 5/6 = 10
3) 3 3/4 : 1 1/4 = 15/4 : 5/4 = 15/4 • 4/5 = 3
4) 11 1/4 : 4 1/2 = 45/4 : 9/2 = 45/4 • 2/9 = 5/2 =
= 2 1/2
5) 5 1/4 : 1 3/4 = 21/4 : 7/4 = 21/4 • 4/7 = 3
6) 3 1/8 : 1 1/4 = 25/8 : 5/4 = 25/8 • 4/5 = 5/2 =
= 2 1/2
1) 1 2/3 : 2 1/2 = 5/3 : 5/2 = 5/3 • 2/5 = 2/3
2) 12 : 1 1/5 = 12 : 6/5 = 12 • 5/6 = 10
3) 3 3/4 : 1 1/4 = 15/4 : 5/4 = 15/4 • 4/5 = 3
4) 11 1/4 : 4 1/2 = 45/4 : 9/2 = 45/4 • 2/9 = 5/2 =
= 2 1/2
5) 5 1/4 : 1 3/4 = 21/4 : 7/4 = 21/4 • 4/7 = 3
6) 3 1/8 : 1 1/4 = 25/8 : 5/4 = 25/8 • 4/5 = 5/2 =
= 2 1/2
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