More Help for Finals, part 4

Six grade: Divide these fractions and/or mixed numbers.
14. ¾ ÷ 1/3 = [A] 2 –¼ [B] ¾ [C] ¼ [D] 4
** Keep-Change-Flip. That makes this 3/4 x 3/1 = 9/4 or 2-1/4. A is correct answer.
15. 2/3 ÷ 2/3 = [A] 1 [B] 4/9 [C] 9/4 [D] 6/4
KCF. 2/3 x 3/2 = 6/6 or 1. A is correct answer.

Seventh Grade:
51. x/10 = 3/5 A] 150 [B] 6 [C] 1.5 [D] 16.67
**Cross multiply. 5x = 3 x 10, 5x = 30, divide by 5-- x = 6 Correct answer is B.

52. 12/8 = a/6 A] 9 [B] 16 [C] 4 [D] 12
**Cross multiply. 12 x 6 = 8a, 72 = 8a. Divide by 8-- 9 = a. Correct answer is A.