1. А) 5/12 + 11/24 =
Б) 17/18 - 7/9 =
2. А) 2 4/11 + 3 8/11 =
Б) 4 6/17 - 1 10/17 =
3. А) (3/8 + 5/12) * 4
Б) (5/6 - 2/9) :11
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Б) 17/18 - 7/9 =
2. А) 2 4/11 + 3 8/11 =
Б) 4 6/17 - 1 10/17 =
3. А) (3/8 + 5/12) * 4
Б) (5/6 - 2/9) :11
Помогите!!
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Б) 17/18 - 7/9 =17/18-14/18=3/18=1/6
2. А) 2 4/11 + 3 8/11 =6 1/11
Б) 4 6/17 - 1 10/17 =2 13/17
3. А) (3/8 + 5/12) * 4=(9/24+10/24)*4=19/24*4=19/6=3 1/6
Б) (5/6 - 2/9) :11 =(15/18-4/18):11=11/18*1/11=1/18