
Adição e Subtração de Frações
Quiz
•
Mathematics
•
6th Grade
•
Practice Problem
•
Hard
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para somar as frações \(\frac{2}{3}\) e \(\frac{1}{4}\), encontramos um denominador comum, que é 12. Reescrevemos as frações: \(\frac{8}{12} + \frac{3}{12} = \frac{11}{12}\). Portanto, a resposta correta é \(\frac{11}{12}\).
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para subtrair as frações, precisamos de um denominador comum. O denominador comum entre 6 e 3 é 6. Reescrevemos \(\frac{1}{3}\) como \(\frac{2}{6}\). Assim, \(\frac{5}{6} - \frac{2}{6} = \frac{3}{6} = \frac{1}{2}\). Portanto, a resposta correta é \(\frac{1}{2}\).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para somar as frações \(\frac{3}{5}\) e \(\frac{2}{7}\), encontramos um denominador comum, que é 35. Convertendo, temos \(\frac{21}{35} + \frac{10}{35} = \frac{31}{35}\). Portanto, a resposta correta é \(\frac{29}{35}\).
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para subtrair as frações, precisamos de um denominador comum. O denominador comum entre 8 e 4 é 8. Convertendo \frac{1}{4} para \frac{2}{8}, temos \frac{7}{8} - \frac{2}{8} = \frac{5}{8}. Portanto, a resposta correta é \frac{5}{8}.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para somar as frações \(\frac{1}{2} + \frac{3}{10}\), precisamos de um denominador comum. O mínimo múltiplo de 2 e 10 é 10. Convertendo \(\frac{1}{2}\) para \(\frac{5}{10}\), temos \(\frac{5}{10} + \frac{3}{10} = \frac{8}{10} = \frac{4}{5}\). Portanto, a resposta correta é \(\frac{4}{5}\).
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para subtrair as frações, precisamos de um denominador comum. O denominador de \( \frac{2}{5} \) é 10, então \( \frac{2}{5} = \frac{4}{10} \). Agora, subtraímos: \( \frac{9}{10} - \frac{4}{10} = \frac{5}{10} = \frac{1}{2} \). Portanto, a resposta correta é \( \frac{1}{2} \).
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para somar as frações \(\frac{4}{9}\) e \(\frac{5}{12}\), encontramos um denominador comum, que é 36. Reescrevemos as frações como \(\frac{16}{36}\) e \(\frac{15}{36}\). A soma é \(\frac{31}{36}\), que simplifica para \(\frac{17}{18}\).
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