Question 570484
You would need a common denominator that is a multiple of both denominators.
In some cases, just multiplying the denominators would give you a good common denominator. Other times you could find an easier, smaller one.
In this case {{{3*5=15}}} is the least common multiple, and a great common denominator.
The next step is to find the equivalent fractions.
Equivalent fractions are made by multiplying or dividing the numerator and denominator (top and bottom numbers) by the same number. So
{{{12/5}}}={{{12*2/(5*2)}}}={{{24/10}}}
also {{{12/5=12*3/(5*3)=36/15}}}
Multiplying numerator and denominator of {{{8/3}}} by 5, you get
{{{8/3=8*5/(3*5)=40/15}}}
To place them on a number line, I would divide to get them in decimal form, and then plot them accordingly.
{{{8/3}}} = {{{2&2/3}}} = about 2.67 (rounded}
{{{12/5=2.4}}} (that one divides exactly, to give you a terminating decimal.