Measurement Multiplying and Dividing Fractions.  We can add and subtract fractions with the same (common) denominator easily. Adding and Subtracting.

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Presentation transcript:

Measurement Multiplying and Dividing Fractions

 We can add and subtract fractions with the same (common) denominator easily. Adding and Subtracting Fractions =

 When multiplying and dividing fractions, we do not need to have common denominators. Multiplying and Dividing Fractions 3535 x 1313 = These do not have to be the same!

 To multiply fractions, simply multiply the two numerators and the two denominators. Multiplying Fractions 3535 x 1313 = x = ????

 To multiply fractions, simply multiply the two numerators and the two denominators x 1313 = x = 3?3? Multiplying Fractions

 To multiply fractions, simply multiply the two numerators and the two denominators x 1313 = x= 3?3? Multiplying Fractions

 To multiply fractions, simply multiply the two numerators and the two denominators x 1313 = x= 3 15 Multiplying Fractions

 If possible, state in simplest form x 1313 = 3 15 = 1515 Multiplying Fractions

 To divide by a fraction, you must multiply by its reciprocal.  To find its reciprocal, simply flip the fraction over! Dividing Fractions The reciprocal of 3/5 is 5/3.

 Example: 3535 ÷ 1313 Dividing Fractions = 3535 x 3131 = Multiply by the reciprocal… 9595

 Assignment Dividing Fractions