Put it in least to greatest 1/3, 1 and 1/4, 0.27,1.35 a. 1/3,0.27,1 and 1/4, 1.35 b.1/3,0.27,1.35,1 and 1/4 c.0.27, 1/3,1.35, 1 and 1/4 d.0.27, 1/3 , 1 and 1/4, 1.35

Your best bet may be to modify (convert) each number so that the denominator is the same (find the LCD and use it).

1/3, 1 and 1/4, 0.27,1.35     has two decimal fractions, and it should be obvious which one is greater than the other.

Generally, it's easier to convert a proper fraction to a decimal fraction than to do the opposite.  Thus, convert 1/3 to a decimal fraction by division (use your calculator if need be):  1/3 = 0.33333 (repeating decimal).  Convert 1 1/4 to 1.25.

Now you have four numbers that are all in decimal fraction form:  0.33333, 1.25, 0.27, 1.35.  Which of these four is the smallest?  Right:  0.27.  Next?  0.33333.  Next? 1.25.  Last?  1.35.