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FRACTIONS TEST REVIEW by Mr. Johnk ORDER FROM GREATEST TO LEAST Question 1 Put the following fractions in order from greatest to least : 1 2 , 5 6 , 3 4 , 2 3 QUESTION 1 ANSWER From greatest to least: 5 3 2 1 , , , 6 4 3 2 10 9 8 6 , , , 12 12 12 12 ORDER FROM LEAST TO GREATEST Question 2 Put the following fractions in order from least to greatest: 1 1 2 , 2 1 3 , 3 1 4 , 4 3 QUESTION 2 ANSWER From least to greatest: 4 1 2 3 ,1 ,1 ,1 3 2 3 4 1 1 2 3 1 , 1 , 1 , 1 3 2 3 4 4 6 8 1 , 1 , 1 , 12 12 12 9 1 12 Question 3 A cookie jar holds 40 cookies and it is eat 1 4 3 5 full. I take out and of those cookies. How many cookies are left in the jar? QUESTION 3 ANSWER There are 18 cookies left in the jar. 40 x 24 x 3 5 1 4 = 24 cookies in jar = 6 that I ate 24-6 = 18 remain in the jar Question 4 What happens to the product of a number and a proper fraction? A. The product gets bigger than the number. B. The product gets smaller than the number. C. The product stays the same. QUESTION 4 ANSWER B. The product gets smaller than the number. 1 2 2 x = 1 which is smaller than 2, the number I started with. 1 4 1 3 1 = 12 × The product is smaller than the number I started with. Question 5 What happens to the product of a number and a mixed number? A. The product is bigger than the number. B. The product gets smaller than the number. C. The product stays the same. QUESTION 5 ANSWER A. The product is bigger than the number. 2 1 3 2 1 3 1 × = The product is bigger than 1, the number I started with. Mixed numbers are greater than one, so your answer will get bigger. Question 6 If I buy a 40 pound bag of bird seed and my bird feeders hold 1 1 pounds on average each day, how many days until I need to 4 go buy more bird seed? QUESTION 6 ANSWER 32 days 40 ÷ 1 1 4 = 40 ÷ 5 4 = 40 × 4 5 = 32 Question 7 True or False? 6 ÷ 2 3 =6× 3 2 QUESTION 7 ANSWER True! Dividing by a fraction and multiplying by the reciprocal give you equivalent amounts! Question 8 True or False? 7÷3= 7 3 =7 3 QUESTION 8 ANSWER False! 7÷ 3 = 7÷ 3 = 7 3 7 3 but 7 3 =37 ≠7 3 Question 9 1 16 4 If I have a square painting that is inches on a side and I want to put a wooden frame around it, how many inches of wooden frame will I need to buy? QUESTION 9 ANSWER 1 16 4 65 4 4 1 x4= × = 65 inches or 5 feet 5 inches of wood. WHAT OTHER QUESTIONS ARE THERE? What else do we need to go over?