Perform the indicated operation . Simplify if possible .
( 7 ) / ( m + 7 ) + ( m ) / ( m + 7 )
Problem 2
Divide. Simplify if possible.
(x + 4 ) / ( x + 4 ) / ( 7x + 6 ) divided by ( 7) / ( 7x + 6 )
2007-08-04 08:45:52 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The LCD is m+7, so the problem becomes
(7+m)/(m+7) or 1.
In the second, the (x+4)/(x+4) divides out, so you have 1/(7x+6) db 7/(7x+6). The two denominators divide out, leaving 1/7
2007-08-04 08:58:04 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
Problem 1
(7) / (m+7) + (m) / (m+7)
Since the two terms already have a common denominator, you can combine the two numerators:
(7+m) / (m+7)
By the commutative property, 7+m = m+7, so you have:
(m+7) / (m+7), which equals 1.
2007-08-04 16:04:39 · answer #2 · answered by gm 2 · 0⤊ 0⤋
I might be wrong, but I think you cross out the like terms. The first one simplifies to 7m and the second one simplifies to 7?
2007-08-04 15:53:20 · answer #3 · answered by Anonymous · 0⤊ 0⤋
please excuse my dear aunt sally.
2007-08-04 15:53:27 · answer #4 · answered by emilyd 2 · 0⤊ 0⤋