Given that a / b = C / D = E / F = 2 / 3, the value of (a + 3c-5e) / (B + 3d-5f) is obtained

Given that a / b = C / D = E / F = 2 / 3, the value of (a + 3c-5e) / (B + 3d-5f) is obtained

(a + 3c-5e) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-3d-5f) = 2 / 3 A / b = C / 3 (B / 3d-3d-5f) / (B + 3d-3d-5f) / (B + 3d-5f) / (B + 3d-5f) = 2 / 3, if multiple fractions are equal, their molecular denominators are added, their molecular denominators are added (subtraction) each is added (subtraction) and (subtraction) the ratio of the score is unchanged, the ratio of the score is unchanged, the score is unchanged, the score is unchanged, a / A / A / b = A / b = A / b = A / b+ 3d-5f) = 2 / 3