Which is larger in decimal 1.6 or 1.7?

In decimal notation, the tenths place is the first decimal place after the decimal point. In this case, 1.7 is larger than 1.6 because 1.7 is one whole unit and seven tenths, while 1.6 is one whole unit and six tenths. The number 1.7 is greater than 1.6 by one-tenth.