Haryana State Board HBSE 7th Class Maths Solutions Chapter 9 परिमेय संख्याएँ Ex 9.2 Textbook Exercise Questions and Answers.
Haryana Board 7th Class Maths Solutions Chapter 9 परिमेय संख्याएँ Ex 9.2
प्रश्न 1.
योग ज्ञात कीजिए :
(i) \(\frac{5}{4}+\left(\frac{-11}{4}\right)\)
(ii) \(\frac{5}{3}+\frac{3}{5}\)
(iii) \(\frac{-9}{10}+\frac{22}{15}\)
(iv) \(\frac{-3}{-11}+\frac{5}{9}\)
(v) \(\frac{-8}{19}+\frac{(-2)}{57}\)
(vi) \(\frac{-2}{3}+0\)
(vii) \(-2 \frac{1}{3}+4 \frac{3}{5}\)
हल :
प्रश्न 2.
ज्ञात कीजिए:
(i) \(\frac{7}{24}-\frac{17}{36}\)
(ii) \(\frac{5}{63}-\left(\frac{-6}{21}\right)\)
(iii) \(\frac{-6}{13}-\left(\frac{-7}{15}\right)\)
(iv) \(\frac{-3}{8}-\frac{7}{11}\)
(v) \(-2 \frac{1}{9}-6\)
हल :
प्रश्न 3.
गुणनफल ज्ञात कीजिए :
(i) \(\frac{9}{2} \times\left(\frac{-7}{4}\right)\)
(ii) \(\frac{3}{10} \times(-9)\)
(iii) \(\frac{-6}{5} \times \frac{9}{11}\)
(iv) \(\frac{3}{7} \times\left(\frac{-2}{5}\right)\)
(v) \(\frac{3}{11} \times \frac{2}{5}\)
(vi) \(\frac{3}{-5} \times \frac{-5}{3}\)
हल :
प्रश्न 4.
निम्नलिखित के मान ज्ञात कीजिए :
(i) \((-4) \div \frac{2}{3}\)
(ii) \(\frac{-3}{5} \div 2\)
(iii) \(\frac{-4}{5} \div(-3)\)
(iv) \(\frac{-1}{8} \div \frac{3}{4}\)
(v) \(\frac{-2}{13} \div \frac{1}{7}\)
(vi) \(\frac{-7}{12} \div\left(\frac{-2}{13}\right)\)
(vii) \(\frac{3}{13} \div\left(\frac{-4}{65}\right)\)
हल :
