27.5/1 as a fraction and 27 and 1/2 as a mixed number.
27.5 is 27 5/10. To get the improper fraction, multiply 27 times 10 and add the 5:
27 x 10 + 5 = 275. The fraction is 275/10.
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275/1 if you meant km, then it is 275/1000, simplifies to 11/40
275 is an integer and not a fraction. However, it can be expressed in rational form as 275/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
0.0073
There are 2 types of fractions, improper and proper Improper: 275/4 Proper: 68 3/4
It is rational. An irrational number is a number that you cannot define by a fraction or a decimal. Since you wrote it as a decimal, it is rational. The fact that it is negative does not matter.