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Important questions for rational Numbers Class 8 CBSE





In this page we have Important questions for rational Numbers Class 8 CBSE . Hope you like them and do not forget to like , social share and comment at the end of the page.
Question 1
  • $$\frac {-1}{17} \times \frac {5}{16} + \frac {5}{16} \times \frac {3}{20} $$
  • $$\frac {-1}{3} \times \frac {1}{13} + \frac {1}{13} \times \frac {1}{3 }$$
  • $$\frac {4}{19} \times \frac {1}{8} + \frac {1}{8} \times \frac {2}{13 } $$
  • $$\frac {-1}{3} \times \frac {1}{19} + \frac {1}{19} \times \frac {1}{17 } $$
  • $$\frac {-2}{11} \times \frac {5}{16} + \frac {5}{16} \times \frac {1}{8 }$$
  • $$\frac {1}{13} \times \frac {1}{11} + \frac {1}{11} \times \frac {1}{17 } $$
  • $$\frac {1}{3} \times \frac {1}{2} + \frac {1}{2} \times \frac {3}{13 } $$
  • $$\frac {1}{19} \times \frac {1}{6} + \frac {1}{6} \times \frac {1}{18 } $$
  • $$\frac {5}{9} \times \frac {1}{6} + \frac {1}{6} \times \frac {2}{15 } $$
  • $$\frac {-2}{5} \times \frac {1}{12} + \frac {1}{12} \times \frac {5}{6 } $$
  • $$\frac {1}{6} \times \frac {5}{18} + \frac {5}{18} \times \frac {1}{4 } $$
  • $$\frac {-1}{10} \times \frac {1}{18} + \frac {1}{18} \times \frac {2}{15 } $$
  • $$\frac {2}{5} \times \frac {1}{13} + \frac {1}{13} \times \frac {1}{4 } $$
  • $$\frac {-1}{8} \times \frac {3}{10} + \frac {3}{10} \times \frac {3}{19 } $$
  • $$\frac {3}{20} \times \frac {2}{13} + \frac {2}{13} \times \frac {2}{17 }$$
  • $$\frac {5}{11} \times \frac {3}{17} + \frac {3}{17} \times \frac {1}{3 } $$
  • $$\frac {1}{19} \times \frac {4}{19} + \frac {4}{19} \times \frac {4}{11 } $$
  • $$\frac {-1}{10} \times \frac {1}{4} + \frac {1}{4} \times \frac {2}{7 }$$
  • $$\frac {-1}{10} \times \frac {5}{19} + \frac {5}{19} \times \frac {5}{11 } $$



Question 2
Fill in the blanks
  • $$\frac {1}{4} - ....... = \frac {-1}{36}$$
  • $$ ...... - \frac {1}{18 } = \frac {23}{72}$$
  • $$\frac {2}{7} - \frac {2}{15 } = .........$$
  • $$\frac {4}{15} - \frac {1}{13 } = ........$$
  • $$\frac {1}{12} + \frac {1}{8 } = ........ $$
  • $$\frac {1}{16} + ....... = \frac {5}{16}$$
  • $$\frac {1}{4} - \frac {5}{16 } = ......$$
  • $$\frac {2}{7} - ........ = \frac {-1}{119}$$
  • $$........ - \frac { 1}{5 } = \frac {3}{85}$$
  • $$\frac {2}{19} - \frac {2}{15 } =........$$


Question 2
Evalute below expression
  • $$\frac {5}{16} - \frac {1}{5 }$$
  • $$\frac {5}{11} \times \frac {1}{2 }$$
  • $$\frac {4}{11} \times \frac {4}{11 } $$
  • $$\frac {5}{14} \times \frac {1}{4 } $$
  • $$\frac {1}{15} \times \frac {1}{3 } $$
  • $$\frac {5}{6} \div \frac {1}{6} $$
  • $$\frac {1}{5} \times \frac {3}{8 } $$
  • $$\frac {1}{12} \times \frac {3}{19 } $$
  • $$ \frac { 5}{64} \div \frac {1}{4 } $$
  • $$\frac {4}{9} \times \frac {2}{7 } $$


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Class 8 Maths Class 8 Science