I am trying to help my daughter with her homework and I don't know if I'm just tired or what, but I stumped on this one. I am starting to think it's a trick question the teacher threw in. Any help is appreciated, thanks.
2006-11-29 12:25:23 · 4 answers · asked by brittsmom 1 in Science & Mathematics ➔ Mathematics
Assuming 5, 7 and 9 are numbers in the denominator, they have no common divisors, so the answer is 5 x 7 x 9 = 315.
If they are in the numerator, then they are assumed to be whole numbers over 1 (5/1, 7/1, 9/1) and the least common denominator would be 1.
2006-11-29 12:29:02 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
I think you're right, and it's a trick question. The numbers 5, 7, and 9 all have denominators of 1 (5/1 = 5, 7/1 = 7, 9/1 = 9). So the least common denominator is 1.
2006-11-29 12:29:00 · answer #2 · answered by thingstealer 2 · 0⤊ 0⤋
Yes, the least (and only) common denominator would be 1. Are you sure it's not supposed to say least common multiple? The least common multiple would be 315.
2006-11-29 12:31:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
for finding the lcm u need to find the common factors..
since there exists no common factors we have lcm = 5 * 7 * 9 = 315
2006-11-29 12:30:16 · answer #4 · answered by Rajkiran 3 · 0⤊ 0⤋