$Directon5$ Choose the correct answer. Write your answer on a separate sheet of paper, 1. Give the Least Common Denominator $\left(tcD\right)$ of $\dfrac {3} {15y^{2}}$ and $\dfrac {5} {46y^{4}}$ A $36y^{2}$ $C9$ $90y^{2}$ B. $36y^{4}$ D. $180y^{4}$ 2. Find the $LcD$ $ot\dfrac {7} {8-2a}$ ofand $\dfrac {2} {4-a}$ $A\left(4-a\right)$ C. $\left(a^{2}+64\right)$ B. $2\left(4-a\right)$ D. $\left(64-a^{2}\right)$ $3$ Give the sum of $\dfrac {a} {b}+\dfrac {a} {b}$ A. C. 222a b a B. D.

Give the least common denominator 2abz and 4ab A. ab2 B. 2ab? D. C. 4ab? 6ab2 2. Look for the sum of $\dfrac {2a} {bc}+\dfrac {a} {bc}$ A. 2a2 C. 3b4a c a bc B. 3a2 D. bc bc 3. Find simplified $formof$ $\dfrac {2x} {3}+\dfrac {x} {4}$ A. C. 1102 x B. 8191x 2 2 x D. 1112 x 4. Perform the indicated operation. $\dfrac {x-2} {2}-\dfrac {x+2} {5}$ A. 31x 0 C. $\dfrac {3x-14} {10}$ B. -110 4 $D.\dfrac {3x.1} {10}$ 5. Given x3+. 3 as one addend of the sum $\dfrac {8x-2} {3}$ find the other addend. A. C. $\dfrac {8x-6} {3}$ $\dfrac {6x-4} {3}$ $\dfrac {7x-5} {3}$ D. -7 B. 6. Perform the indicated operation. $\dfrac {2x-5} {4}+\dfrac {x+3} {4}$ A. C. $\dfrac {3x-6} {4}$ $→$ $\dfrac {3x-2} {4}$ $\dfrac {3x-4} {4}$ D. B. 7. Find the least common denominator of $\dfrac {7} {9-3a}$ and $\dfrac {2} {3-a}$ $A.3$ C. $3\left(3-a\right)$ B. $3-a$ D. $4\left(4-a\right)$

1. Give the least common denominator 2a4b. 2 and 4ab A. ab2 B. $2ab^{2}$ C. 4ab? D. 6ab2 2. Look for the sum of $\dfrac {2a} {bc}+\dfrac {a} {bc}$ A. 2bac ? 3ba c B. 3bac ? bc 3. Find simplified $tormOf$ $\dfrac {2x} {3}+\dfrac {x} {4}$ A. 8x 12 C. 1102 x B. 4 91x 2 11x 12 4. Perform the indicated operation. x+2 3x A. 10 C. $\dfrac {3x-14} {10}$ B. 10 D. 5. Given x+3 as one addend of the sum $\dfrac {8x-2} {3}$ find the other addend. A. $6x-4$ 3 C. $\dfrac {8x-6} {3}$ B. $\dfrac {7x-5} {3}$ D. 6. Perform the indicated operation. $\dfrac {2x-5} {4}+\dfrac {x+3} {4}$ A. $\dfrac {3x-2} {4}$ C. $\dfrac {3x-6} {x^{4}}$ B. $\dfrac {3x-4} {4}$ D. 7. Find the least common denominator of $\dfrac {7} {9-3a}$ and 3-2 a $A.3$ C. $3\left(3-a\right)$ B. $3-a$ D. $4\left(4-a\right)$