Question

alguém responde pfvr

Answer 1

Resposta:

a) 3/9

b) 12/99

c) (23-2)/9 =21/9

d) (1126-1)/999=1125/999

e) (2233-22)/99 =2211/99

f) 0,03939.....=39/990

g) (209-20)/90 =189/90

h) (2090-20)/990 =2070/990