Put the integer over 100 then reduce.
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Fractions and integers can be equivalent, but they are different things. An integer can be written as a fraction (7 = 7/1 or 21/3) but in its simplified form it is not a fraction.
Because that is the definition of irrational numbers: They are the numbers that cannot be written as a ratio of two integers! A fraction is a ratio of two integers.
The number 9.23 is a rational number. A rational number is any number that can be expressed as a fraction of two integers, where the denominator is not zero. In this case, 9.23 can be written as 923/100, which is a fraction of two integers, making it a rational number.
No. 1.75 is NOT an irrational number. Rational numbers cannot be represented as a ratio of two integers. 1.75 can be represented as a ratio of the integers 175 and 100, i.e. 175/100 Note that this can be reduced to the equivalent fraction 7/4, which is a ratio of the integers 7 and 4
Rational; 37/10 is a ratio, and it is the same number as 3.7