A rational number between 2.6 and 2.7

There's no number between 6 and 7, but we can add an extra digit with less value.

2.6 = two and six tenths

2.7 = two and seven tenths

2.65 = two, six tenths and five hundredths

2.6 = 26/10 = 260 / 100;

2.7 = 27/10 = 270 / 100;

But, 260 / 100 < 265 / 100 < 270 / 100;

A rational number between 2.6 and 2.7 is 2.65;