Question

What is the least common denominator of the equation
2/9 * x + 2/3 * x = 7?

3
9
27
63

Answer 1

Answer:

9 is the least common denominator for the given equation

3x3=9

Answer 2

Answer:

Denominator = 9

$x = 7 \frac{7}{8}$

Step-by-step explanation:

$\frac{2}{9} x + \frac{2}{3} x = 7 \\ \\ \frac{2}{9} x + \frac{2 \times 3}{3 \times 3} x = 7 \\ \\ \frac{2}{9} x + \frac{6}{9} x = 7 \\ \\ \frac{2 + 6}{9} x = 7 \\ \\ \frac{8}{9} x = 7 \\ \\ x = 7 \times \frac{9}{8} \\ \\ x = \frac{63}{8} \\ \\ x = 7 \frac{7}{8}$