Question

rút gọn P/S 

a) \(\frac{121212}{424242}\)b)\(\frac{19999999999}{99999999995}\)

có lời giải chi tiết

Answer 1

a.12/42

b.2.000000001

Answer 2

a)121212/424242=12/42=2/7

b)19999999999/99999999995=1/5

Answer 3

\(a,\)\(\frac{121212}{424242}\)\(=\)\(\frac{121212:60606}{424242:60606}\)\(=\)\(\frac{2}{7}\)

\(b,\)\(\frac{19999999999}{99999999995}\)\(=\)\(\frac{19999999999:19999999999}{99999999995:19999999999}\)\(=\)\(\frac{1}{5}\)

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