Question

Rút gọn hai phân số sau: 121212 / 424242 và 1999999999 / 9999999995.

Answer 1

\(\frac{121212}{424242}=\frac{121212:10101}{424242:10101}=\frac{12}{42}=\frac{2}{7}\)

\(\frac{1999999999}{9999999995}=\frac{1999999999:1999999999}{9999999995:1999999999}=\frac{1}{5}\)

Answer 2

121212 / 424242 = 2/7

1999999999 / 9999999995 = 1/5