Answer:
5 1/2
Explanation:
if I read this correctly, we have
5 15/30
and by "reduce" you mean "simplifying", right ?
we need to focus on 15/30.
how can this be simplified ?
well, we could see right away that 30 = 2×15.
so,
15/30 = 15/(2×15) = (1×15)/(2×15)
then we can divide the numerator and the denominator by 15 and end up with 1/2.
or if we don't see this, we try to find small common prime factors between both numbers.
let's start with 2.
2 is a factor of 30, but not of 15.
ok, then next one : 3
yes, 3 is a factor of 15 and of 30.
so, let's divide both by 3 :
15/30 = 5/10
again 3 ?
no, 3 is neither a factor of 5 nor of 10.
ok, next one : 5
yes, 5 is a factor of 5 and of 10.
so, let's divide both by 5 :
5/10 = 1/2
because one of them is now 1, we are finished.
so, the reduced or simplified answer :
5 15/30 = 5 1/2
if you need a full fraction, then 5 = 10/2. plus 1/2 is then
5 1/2 = 11/2