- (7z-6t) / (9z) + (z-6t) / (6z) +2
Express as a single fraction in lowest terms
2007-08-01 14:11:07 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
-(7z - 6t) / (9z) + (z - 6t) / (6z) + 2
Multiply all terms to get common denominator of 18z :
-(14z -12t) / (18z) + (3z -18t) / (18z) + (36z) / (18z)
Add all numerators, and put over common denominator :
-(14z) + (3z) + (36z) + (12t) - (18t) / (18z)
Simplify :
(25z) -(6t) / 18z : simplest form
2007-08-01 14:43:08 · answer #1 · answered by Don E Knows 6 · 0⤊ 0⤋
- (7z-6t) / (9z) + (z-6t) / (6z) +2
Change all terms to lowest common denominator (18z)
(-2(7z-6t) +3(z-6t) +2*18z)/18z =
(-14z +12t +3z - 18t + 36z)/18z =
(25z - 6t) /18z
2007-08-01 14:22:58 · answer #2 · answered by Steve A 7 · 0⤊ 0⤋
- (7z-6t) / (9z) + (z-6t) / (6z) + 2
= -7/9 + 2t/(3z) + 1/6 - t/z + 2
= 25/9 - t/(3z)
2007-08-01 14:18:22 · answer #3 · answered by sahsjing 7 · 0⤊ 1⤋