Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$https://latex.codecogs.com/png.image?\dpi{110}\frac{3c}{c+d}+\frac{3d}{c+d}=$	A. 3cd —— c + d
	B.
	C. 3
	D. 6cd —— c + d
	E. 9cd —— c + d

[ B-5663 - op net sinds 11.7.2020-()-30.10.2023 ]

See above

$\frac{3c}{c+d}=\frac{3d}{c+d}=\frac{3c+3d}{c+d}=\frac{3(c+d)}{c+d}=3$