Adding and Subtracting Fractions Test

1. Sebastian completed 1 of his homework before his baseball practice and 3 after practice. How much of his homework did he complete? 4 1 7 1 2. Consider how many pounds of flour each baker should get if 9 bakers want to share a 50-pound sack of flour equally by weight. Between what two whole numbers does your answer lie? between 4 and 5 between 5 and 6 between 6 and 7 between 7 and 8 3. Mr. Pham had 2 of a liter of salt water. He used 1 of a liter for an experiment. How much salt water does Mr. Pham have left? 2 3 1 7 4. Janet had 5 pizzas for sale. Janet sold 1 5 pizzas to the math team. Then, she sold 2 3 pizzas to the drama club. How much pizza is still left for sale? 4 3 of a pizza 5 of a pizza 3 8 of a pizza 5 of a pizza 5. 1 + 1 5 2 5 6. 1 1 - 1 1 1 1 7 11 7. 1 + 2 is greater than 1 less than 1 8. 1 1 - 1 is greater than 1 less than 1 9. 2 - 1 is greater than 1 less than 1 10. 1 1 + 7 is greater than 1 less than 1 11. Lila collected the honey from 3 beehives. From the first hive she collected 2 of a gallon. From the last two hives, she collected 1 gallon each. How much did Lila collect in all? 1 1 gallons 11 gallons 5 gallons 1 gallon 12. Sandra says that 5 - 1 = 4 because all you have to do is subtract the numerator and subtract the denominator. Is Sandra correct and why? Yes, Sandra is correct because 5-1 is 4 and 8-2 is 6, so the answer should be 4 No, Sandra is wrong because she should find common denominators when subtracting fractions with unlike denominators. The answer should be 1 No, Sandra is wrong because she should find common denominators when subtracting fractions with unlike denominators. The answer should be 1 1 13. A recipe calls for 2 1 cups of walnuts, and 3 3 cups of pecans. How many cups of nuts are needed in all for this recipe? Write an equation and show your work to solve. 3 3 - 2 1 1 1 cups 2 1 + 3 3 5 1 cups 2 1 + 3 3 5 5 cups 3 3 + 2 1 1 1 cups 14. 1 2 + 2 1 3 3 4 1 2 1 3 9 15. 2 1 - 1 1 2 2 1 1 1 1 16. 4 1 - 3 1 5 7 1 1 1 17. 1 + 4 5 7 1 2 18. Clayton says that 2 1 + 3 3 will be more than 5 but less than 6 since 2 + 3 is 5.Is Clayton’s reasoning correct? Yes, he is right because 3 + 2 does equal 5. No, he is wrong because Clayton didn't consider the fractions which adds to more than 1 making the problem more than 6. 19. Use < , > , or = to make each statement correct. 5 2 + 3 3 8 2 > = < 20. 4 5 - 3 2 1 5 + 2 > = <