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1. A board USB cut into 20 equal pieces so that each piece is 6 1/2 cm in length. How long was the board before it was cut?

 

2. Mr. Phillips served 1/2 of a chicken for dinner. 2/3 of the chicken served was eaten. What fraction of the roast served was eaten?

 

3. Mario completed 3/5 of his homework. One fourth of the completed homework was in geography. What franctional part of the homework was in geography?

Guest Apr 10, 2018
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1. A board USB cut into 20 equal pieces so that each piece is 6 1/2 cm in length. How long was the board before it was cut?

 

20  *  (6 + 1/2)   =   20*6  + 20* (1/2)  =  120 + 10  =  130 cm

 

 

2. Mr. Phillips served 1/2 of a chicken for dinner. 2/3 of the chicken served was eaten. What fraction of the roast served was eaten?

 

Well.....this could be construed as a" trick " question...if 2/3 of what was served was eaten, then 2/3 must be the answer

 

However...if we are talking about the fraction of the total roast eaten, we have

(1/2) (2/3)  =  2/6  =   1/3  of the whole roast was eaten

 

 

3. Mario completed 3/5 of his homework. One fourth of the completed homework was in geography. What franctional part of the homework was in geography?

 

(3/5) (1/4)  =  3/20   

 

 

cool cool cool

CPhill  Apr 10, 2018

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