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1
5
+
4
5
\dfrac{1}{5} + \dfrac{4}{5}
5
1
+
5
4
1
5
+
4
5
\dfrac{1}{5} + \dfrac{4}{5}
5
1
+
5
4
Since these fractions have the same denominator, we can just add the numerators
1
5
+
4
5
=
5
5
\dfrac{1}{5} + \dfrac{4}{5} = \dfrac{5}{5}
5
1
+
5
4
=
5
5
5
5
\dfrac{5}{5}
5
5
can be reduced, since
5
5
5
is a factor of both
5
5
5
and
5
5
5
:
5
5
÷
5
5
=
1
\dfrac{5}{5} \div \dfrac{5}{5} = 1
5
5
÷
5
5
=
1
The fraction is now in lowest terms