So you want the denominator to be the same. you would multiply the denominators all together like so, 5 x 3 x 8 3 x 5 x 8 8 x 3 x 5 that all equals the same denominator of 120. now what you do to the bottom you have to do to the top 1 x 3 x 8=24 2 x 5 x 8=80 5 x 3 x 8=120 now you have to put in on top of the denominator 1/5=24/120 simplified to 1/5 2/3=80/120 simplified to 2/3 5/8=120/120 simplified to 1
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