Question

решите уравнение ( 2 8/9x - 2 1/4) / 2 1/12 = 3/5

Answer 1

( 2 8/9x - 2 1/4) / 2 1/12 = 3/5
( 2 8/9x - 2 1/4)= 3/5* 2 1/12 
2 8/9x - 2 1/4= 3/5* 25/12 
2 8/9x - 2 1/4= 1/1* 5/4
2 8/9x - 2 1/4= 1 1/4
2 8/9x = 1 1/4+2 1/4
2 8/9x =3 2/4
2 8/9x =3 1/2
х=3 1/2:2 8/9
х=7/2:26/9
х=7/2*9/26
х=63/52
х=1 11/52