Question

1)
х+1/9=3/8
2)
х-2/15=5/21​

Answer 1

Ответ:

$x + \frac{1}{9} = \frac{3}{8}$

$x = \frac{3}{8} - \frac{1}{9}$

$x = \frac{19}{72}$

$x - \frac{2}{15} = \frac{5}{21}$

$x = \frac{5}{21} + \frac{2}{15}$

$x = \frac{13}{35}$

Answer 2

1)x+1/9=3/8

x=3/8-1/9=27/72-8/72

x=19/72

2)x-2/15=5/21

x=2/15+5/21=14/105+25/105

x=39/105= 13/35