Question

calcule o valor numerico da expressão E=3,212121...+ 1,3666....

Answer 1

3,21 21 21...... 3 inteiros  21/99  = ( 99 *3) + 21 = 318/99= 106/33
1,36666.......... 1 inteiroe ( 36 - 3)/90  = 1 int  33/90  = 123/90
106/33 + 123/90 = 
mmc = 990
( 3180 + 1353)/990 = 4533/990 =  1511/330 = 4 int. 191/330