<PRE><B>Question 1134646</B>
3 5/6 - 1 1/4 + 1 1/2
===========
Change to &quot;improper fractions.&quot;
= (23/6) - (5/4) + (3/2)
You might spot the the LCD (Least Commom Denominator) is 12.
You might not.
-----------
The product of the DENs always works.
6*4*2 = 48
---
(23/6) - (5/4) + (3/2) = (184/48) - 60/48) + (72/48)
= (184 - 60 + 72)/48
= 196/48
Then reducing is easy.
= 49/12
========================
You can use the product of the DEN&#39;s, then, if it&#39;s asked for, the result is in the LCD.
-----
Wasting time and fretting about the LCD accomplishes nothing.
Using the product ALWAYS works, and reducing is easy.
</PRE>