Find the LCD for the given rational expressions:?

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Find the LCD for the given rational expressions:?

A) (5/40), (7/20)
B) (1/3x^3), (3/2x^5)

2006-10-14 14:13:42 · 4 answers · asked by racheldawnsmith311 1 in Science & Mathematics ➔ Mathematics

4 answers

For A, the LCD is 40 because 20 and 40 both divide evenly into 40.

For B, the LCD is the multiplication of BOTH denominators.

So, LCD = 3x^3 TIMES 2x^5 = 6x^7 or simply (3x^3) (2x^5).

Guido

2006-10-14 14:22:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋

For B, 6x^5 would work. Both 3 and 2 are factors of 6, and x^3 would divide into x^5.

2006-10-14 21:31:46 · answer #2 · answered by PatsyBee 4 · 0⤊ 0⤋

A) 40
B) 2x^3

2006-10-14 21:17:25 · answer #3 · answered by smarties 6 · 0⤊ 0⤋

a)40
b)(3x^3)(2x^5)

2006-10-14 21:16:34 · answer #4 · answered by sur2124 4 · 0⤊ 0⤋