SOLUTION: how is LCD solved?

Question 76403: how is LCD solved?

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
LCD EXAMPLE 1/4+1/5+1/12 DEFINE ALL FACTORS FOR EACH DENOMINATOR
2*2=4
1*5=5
2*2*3=12
IDENTIFY ALL UNIQUE FACTORS 1,5 & 3 MULTIPLY THESE 1*5*3=15
NOW IDENTIFY ALL COMMON TERMS 2*2=4
NOW MULTIPLY THE PRODUCT OF THE UNIQUE TERMS & THE COMMON TERMS 15*4=60
(1*15+1*12+1*5)/60
(15+12+5)/60
32/60=8/15
----------------------------------------------------------------------
1/15+1/36+1/48
3*5=15
4*3*3=36
4*4*3=48
IDENTIFY ALL UNIIQUE FACTORS 5
IDENTIFY ALL COMMON FACTORS 4*4 & 3*3 OR 16 & 9
NOW MULTIPLY THESE PRODUCTS 5*16*9=720

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