Question

What is the least common denominator of the equation

2/9 * x + 2/3 * x = 7?

3
9
27
63

Answer 1

Denominator = 9

`x = 7 (7)/(8)`

Explanation:

`(2)/(9) x + (2)/(3) x = 7 \\ \\ (2)/(9) x + (2 * 3)/(3 * 3) x = 7 \\ \\ (2)/(9) x + (6)/(9) x = 7 \\ \\ (2 + 6)/(9) x = 7 \\ \\ (8)/(9) x = 7 \\ \\ x = 7 * (9)/(8) \\ \\ x = (63)/(8) \\ \\ x = 7 (7)/(8)`

Answer 2

9 is the least common denominator for the given equation

3x3=9