CBSE Class 7 Mathematics Rational Numbers Assignment Set 09

Question. Subtract \( \frac{5}{6} \) from \( \frac{3}{2} \)
Answer: \( \frac{2}{3} \)

Question. Simplify \( \frac{1}{4} - \frac{1}{2} \)
Answer: \( -\frac{1}{4} \)

Question. What should be subtracted from \( \frac{2}{7} \) to get \( \frac{1}{3} \)
Answer: \( -\frac{1}{21} \)

Question. Simplify \( \frac{3}{5} - \frac{1}{2} - \frac{5}{6} \)
Answer: \( -\frac{11}{15} \)

Question. Simplify \( \left( \frac{1}{2} + \frac{1}{4} \right) - \left( \frac{1}{8} + \frac{1}{16} \right) \)
Answer: \( \frac{9}{16} \)

Question. Subtract \( \frac{-11}{24} \) from \( \frac{-5}{18} \)
Answer: \( \frac{13}{72} \)

Question. What should be added to \( \frac{-3}{4} \) to make \( \frac{-7}{16} \)
Answer: \( \frac{5}{16} \)

Question. Simplify: \( \frac{2}{3} + \frac{-6}{7} + \frac{4}{15} - \frac{-2}{21} \)
Answer: \( \frac{6}{35} \)

Question. Subtract the sum of \( \frac{-5}{7} \) and \( \frac{3}{2} \) from \( \frac{15}{14} \)
Answer: \( \frac{2}{7} \)

Question. What should be subtracted from \( \left( \frac{5}{16} + \frac{3}{2} \right) \) to get 2.
Answer: \( -\frac{3}{16} \)

Question. Arun lives \( \frac{3}{4} \) km from school and Anil \( \frac{2}{3} \) km from school. Who lives farther from school and how much?
Answer: Arun lives farther by \( \frac{1}{12} \) km

Question. Anika completes her homework in \( \frac{2}{3} \) hours whereas Sneha complete it in \( \frac{6}{5} \) hours. Who complete the work earlier and by how much time?
Answer: Anika complete earlier by \( \frac{8}{15} \) Hrs.