Operations On Rational Numbers, Revision Notes: Maharashtra Class 7 MATH, Mathematics

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Operations on Rational Numbers

All the operations on rational numbers are performed as in fractions.

Example: Solve

Solution:

$= \frac{- 3 \times 3 + 5 \times 2}{12} = \frac{- 9 + 10}{12} = \frac{1}{12}$

$= \frac{2 \times 5 - 3 \times 7}{35} = \frac{10 - 21}{35} = - \frac{11}{35}$

When 0 is added to any rational number, say $\frac{p}{q}$ , the same rational number is obta…

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