If that is a terminating decimal:
1.61111111 = 161111111/100000000 = 1 61111111/100000000
If that is a repeating decimal:
1.6111... = (16.111... - 1.6111...)/9
= 14.5/9
= 145/90
= 29/18
= 1 11/18
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1.61111111 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its rational equivalent is 161111111/100000000 which cannot be simplified.
Every fraction is an equivalent fraction: each fraction in decimal form has an equivalent rational fraction as well as an equivalent percentage fraction.
A fraction that has a different sign to the first fraction.
Divide the fraction by 100, and you will get the percentage of a fraction.
Or both. That's a complex fraction.
The number below the fraction bar in a fraction is the denominator. The number above the fraction bar is the numerator.