Question

помогите по алгебре сделать дам 10 балов

Answer 1

Ответ:

1) 7/18 + 5/18 = 12/18 = 2/3

2) 9/16 + 7/16 = 16/16 = 1

3) 23/32 - 15/32 = 8/32 = 1/4

4) 4 - 1(3/11) = 4/1 - 14/11 = 44/11 - 14/11 = 30/11 = 2(8/11)

Answer 2

Ответ:

1)

$\frac{7}{18} + \frac{5}{18} = \frac{5 + 7}{18} = \frac{12}{18} = \frac{2}{3}$

2)

$\frac{9}{16} + \frac{7}{16} = \frac{9 + 7}{16} = \frac{16}{16} = 1$

3)

$\frac{23}{32} - \frac{15}{32} = \frac{23 - 15}{32} = \frac{8}{32} = \frac{1}{4} = 0.25$

4)

$4 - 1 \frac{3}{11} = 4 - \frac{14}{11} = \frac{30}{11} = 2 \frac{8}{11}$