Question

9/9+3/9-b=6/9; d+4/8-2/8=5/8

Answer 1

Răspuns:

$\frac{9}{9} + \frac{3}{9} - b = \frac{6}{9}$

$\frac{12}{9} - \frac{6}{9} = b$

$b = \frac{6}{9}$

$d + \frac{4}{8} - \frac{2}{8} = \frac{5}{8}$

$d + \frac{2}{8} = \frac{5}{8}$

$d = \frac{5}{8} - \frac{2}{8}$

$d = \frac{3}{8}$

Answer 2

1) 9/9+3/9-b= 6/9
9+3/9 -b=6/9
12/9 -b=6/9
b=12-6/9
b=6/9

2)d+4/8 -2/8=5/8
d+4-2/8=5/8
d+2/8=5/8
d+2=5
d=3