Question

me ajuda e pra hoje
resolva as operaçoes abaixo
A)2,5555....+1/4

B)23,454545...+1,55555...

c)1,454545..-0,5555...

D)25/999+1,234234...

Answer 1

2,555..... + 1/4
2,555... = 2 inteiros  5/9 = ( 9 * 2) + 5 = 23/9
23/9 + 1/4
mmc= 9 * 4 = 36
( 92 + 9 )/36 = 101/36 = 2 int  29/36****

b
23,4545.... + 1,555....
23,4545...  23 int. 45/99  = 23 int  5/11 = ( 11 + 23)+5 = 258/11 ***
1,555..... 1 int 5/9 =  14/9 ***
258/11 + 14/9
mmc = 99
( 2322 + 154)/99  = 2476/99 = 25 int 1/99 

c
1,4545..... - 0.555...)
1,4545....  = 1 int 45/99 =  1 int 5/11 = 16/11
0,555 . 5/9 ***
16/11 - 5/9  =
mmc = 99
( 144 - 55)/99 = 89/99****

d
25/999 + 1,234234.....
1,234234 = 1 int 234/999 = 1 int 26/111 = 137/111
25/999 + 137/111
mmc = 999
( 25 + 1233)/999 = 1258/999  =  1 int   259/999 ****