Question

encontre a fracao geratirz das dizimas periodicas compostas=

a)1,4 888

b)2,134

c)2,17777...

Answer 1

a)1,4 888..... = 1 + 48 - 4 / 90 = 1 + 44/90 = 1 x 90 + 44 / 90 = 90 +44/ 90 =
134/90 = 67/45
b)2,134 134 ..... 2 + 134/999 = 999 x 2 + 134 /999 = 1998+ 134/999 = 
2132/999 = 
c)2,17777..... = 2 + 17 - 1 / 90 = 2 + 16/90 = 2 x 90 + 16/90 = 180 + 16 /90 =
196/90 = 98/45