Question

Помогите мне Дам 50 Балов​

Answer 1

Ответ:

Пошаговое объяснение:

1) 4/11 + 3/11 -5/11 = ( 4 + 3 -5 )/11 = 2/11

2) 8/15 - 4/15 + 1/15 = ( 8 - 4 + 1)/15 = 3/15

3)2(2/9) - 1(1/9) + 3(5/9) = (2*9+2)/9 - 10/9 + (9*3+5)/9=

20/9 - 10/9 +32/9 = 42/9

4) 7(2/7) + 1(3/7) - 2(1/7) = 51/7 + 10/7 - 15/7 = 46/7

Answer 2

Пошаговое объяснение:

1)

4/11+3/11-5/11=(4+3-5)/11=2/11

2)

8/15-4/15+1/15=(8-4+1)/15=5/15=1/3

3)

2 2/9-1 1/9+3 5/9=(2-1+3)+(2/9-1/9+5/9)=

=4+(2-1+5)/9=4+6/9=4+2/3=4 2/3

4)

7 2/7+1 3/7-2 1/7=(7+1-2)+(2/7+3/7-1/7)=

=6+(2+3-1)/7=6+4/7=6 4/7