2006-11-14 09:55:33 · 5 answers · asked by motormouth 2 in Science & Mathematics ➔ Mathematics
Find the lowest common denominator (LCD).
i.e. 1/2 + 1/3
LCD = 2*3 = 6
(1*3)/(2*3) + (1*2)/(3*2) =
3/6 + 2/6
5/6
2006-11-14 09:58:04 · answer #1 · answered by bourqueno77 4 · 1⤊ 0⤋
the first thing you need to do is find a common denominator, something both fractions can be, once you do that, all you have to do is add the numbers or subtract the numbers (remember that when finding the common denominator, you have to do the same thing to the numerator as you did to the denominator k)
2006-11-14 10:02:26 · answer #2 · answered by sweets_vch 1 · 0⤊ 0⤋
Well it would help if you gave us the problem. But anyway you need to make the denominator the same by multiplying both by a number that will make them equal. If you can't think of any then just multiply the first denominator by the second and the second by the first.
2006-11-14 10:33:08 · answer #3 · answered by JQ 9 2 · 0⤊ 0⤋
before you add or subtract, you need to find the common denominator
2006-11-14 09:57:57 · answer #4 · answered by momof9 2 · 0⤊ 0⤋
You have to find a common denominator
2006-11-14 10:06:00 · answer #5 · answered by ^..^ 4 · 0⤊ 0⤋