
Problemes amb fraccions
Authored by Núria Garcia
Mathematics
8th Grade
Used 3+ times

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11 questions
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1.
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15 mins • 1 pt
La directora d'una empresa guanya 51.000 euros a l'any.
Els administratius guanyen una tercera part del que cobra la directora.
Quant guanyen a l'any els administratius?
2.
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15 mins • 1 pt
La Gemma ha llegit 7/9 d'un llibre de 333 pàgines. En Valentí, que n'ha llegit dos terços, diu que va més avançat en la lectura. Té raó, en Valentí?
3.
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15 mins • 1 pt
A la Magalí li queden cinc sisens del dipòsit de combustible del cotxe. Utilitza 1/12 del dipòsit cada dia. Per a quants dies li queda combustible?
4.
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15 mins • 1 pt
Per pintar figures d'un joc de rol, cal 1/8 d'un tub de pintura. Si disposem d'un tub i mig, quantes figures podrem pintar?
5.
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15 mins • 1 pt
Es volen envasar 3000 litres en ampolles de 3/4. Quantes ampolles es podran omplir?
6.
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15 mins • 1 pt
L'aigua, quan es congela, augmenta el volum 1/10. Si fiques al congelador una ampolla d'aigua d'un terç de litre, quant volum has de deixar buit perquè no es trenqui?
7.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
La propietària d'un camp va decidir vendre 3/7 parts de la finca. Després, va vendre la meitat del que li havia quedat i, finalment, va repartir entre els seus dos fills un terç de la resta.
Quina fracció del camp original continuava mantenint en propietat al final d'aquestes operacions?
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