Lesson 5 3 dividing mixed numbers
- 1. Name __________________________________Date __________________<br />Mrs. Labuski & Mrs. Rooney Period________Lesson 5-3 Dividing Fractions & <br />Mixed Numbers<br />VOCABULARYDEFINTIONEXAMPLERECIPROCALTwo numbers are reciprocals if their product is 1. Dividing by a number is the same as multiplying by its reciprocal.Number Reciprocal 1 5 5 1 3 4 4 3 <br />Find the reciprocals:<br />Change mixed number to an improper fraction and then find the reciprocal.<br />Dividing fractions ÷= 2 2 5 41. Keep the first fraction Change division to multiplication Flip the second fraction to get the as reciprocal(keep, change, reciprocal) = 2 4 5 22. Cross reduce. 1= 2 4 5 2 13. Multiply the numerators 1= 4 4 5 1 4. Multiply the denominators 1= 4 4 5 1 55. Reduce if necessary. 4 5<br />1Dividing mixed numbers=÷ 2 2 5 41. Change mixed numbers into improper fractions=÷ 7 2 5 42. Rewrite as multiplication using the reciprocal of the second fraction.(keep, change, reciprocal)= 7 4 5 23. Cross reduce if able. =7 4 5 24. Multiply the numerators =7 4 28 5 2 5. Multiply the denominators 1= 4 282 5 2 106. Reduce /convert to a mixed number if necessary.=2= 28 8 4 10 10 5<br />Name __________________________________Date __________________<br />Mrs. Labuski & Mrs. Rooney Period________Lesson 5-3 Dividing Fractions & <br />Mixed Numbers<br />VOCABULARYDEFINTIONEXAMPLERECIPROCALTwo numbers are reciprocals if their product is 1. Dividing by a number is the same as multiplying by its reciprocal.Number Reciprocal 1 5 5 1 3 4 4 3 <br />Find the reciprocals:<br />Change mixed number to an improper fraction and then find the reciprocal.<br />Dividing fractions ÷= 2 2 5 41. Keep the first fraction Change division to multiplication Flip the second fraction to get the as reciprocal(keep, change, reciprocal) = 2 4 5 22. Cross reduce. 1= 2 4 5 2 13. Multiply the numerators 1= 4 4 5 1 4. Multiply the denominators 1= 4 4 5 1 55. Reduce if necessary. 4 5<br />1Dividing mixed numbers=÷ 2 2 5 41. Change mixed numbers into improper fractions=÷ 7 2 5 42. Rewrite as multiplication using the reciprocal of the second fraction.(keep, change, reciprocal)= 7 4 5 23. Cross reduce if able. =7 4 5 24. Multiply the numerators =7 4 28 5 2 5. Multiply the denominators 1= 4 282 5 2 106. Reduce /convert to a mixed number if necessary.=2= 28 8 4 10 10 5<br /> K C R K C R<br /> 5 111 ÷ 11 7 3<br /> 6 5 4 7 8 2<br />K C R<br /> 15 1 1 11 7 21<br /> 6 5 1 4 11 1 16<br />7<br /> 4<br /> 13 ÷ 119 ÷ 3 3 ÷ 9<br /> 4 410 1 4 1<br />K C RK C R K C R<br /> 13 4 1 39 1 1 3 1<br /> 14 1110 31 4 93<br />13 3 1<br /> 1110 12<br />24 ÷6 5 ÷ 2317 ÷ 13<br /> 9 76 10 8 4<br />K C RK C R K C R<br />424 75 10517 41<br /> 9 61 36 23 2 8 13<br /> 28 <br /> 9<br />Answers to tonight’s homework:<br />