To order the fractions from least to greatest we have to write the fractions
\using a common denominator. To find the LCD first find the LCM of the
\denominators.
\Write the prime factorization of each denominator.
\


Write the prime factors of each number in the exponential form.
\


Multiply the highest power of each factor in either number.
\
Least Common Denominator of 4, 9 and 15 is 180.
Rewrite the equivalent fractions using the LCD.
\

Denominators are same so compare the numerators.
\
, so
The proper fractions order from least to greatest are
.