<PRE><B>Question 96769</B>
express this as a simplified rational number 10/3-5/2
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To add or subtract fractions they need to have a common denominator.
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On your problem the least common denominator (lcm) is 2*3 or 6
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Rewrite each of your fractions with the lcm as its denominator:
(2*10/lcm) - (3*5/lcm)
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Combine the numerators over the lcm:
[20-15]/lcm
Simplify
5/6
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Cheers,
Stan H.</PRE>