SOLUTION: SIMPLIFY EACH EXPRESSION. SHOW CANCELLING AND FACTORING 1. 18/24 2.7RS^3/21R^2S 3.3Y-3/Y^2-1

Algebra ->  Expressions-with-variables -> SOLUTION: SIMPLIFY EACH EXPRESSION. SHOW CANCELLING AND FACTORING 1. 18/24 2.7RS^3/21R^2S 3.3Y-3/Y^2-1      Log On


   

Question 876071: SIMPLIFY EACH EXPRESSION. SHOW CANCELLING AND FACTORING
1. 18/24
2.7RS^3/21R^2S
3.3Y-3/Y^2-1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'll do the first one to get you started


18%2F24


%282%2A3%2A3%29%2F%282%2A2%2A2%2A3%29 Factor each number as much as possible (ie do a prime factorization of each)


%28highlight%282%29%2A3%2A3%29%2F%28highlight%282%29%2A2%2A2%2A3%29


%28cross%282%29%2A3%2A3%29%2F%28cross%282%29%2A2%2A2%2A3%29


%283%2A3%29%2F%282%2A2%2A3%29


%28highlight%283%29%2A3%29%2F%282%2A2%2Ahighlight%283%29%29


%28cross%283%29%2A3%29%2F%282%2A2%2Across%283%29%29


3%2F%282%2A2%29


3%2F4


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So, 18%2F24=3%2F4