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प्रश्न
Simplify:
\[\frac{- 2}{5} - \frac{- 3}{10} - \frac{- 4}{7}\]
योग
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उत्तर
\[\frac{- 2}{5} - \frac{- 3}{10} - \frac{- 4}{7}\]
\[\text{Taking the L . C . M .} \hspace{0.167em} \text{of the denominators:} \]
\[\frac{- 28}{70} - \frac{- 21}{70} - \frac{- 40}{70}\]
\[ = \frac{( - 28) - ( - 21) - ( - 40)}{70}\]
\[ = \frac{- 28 + 21 + 40}{70}\]
\[ = \frac{33}{70}\]
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संबंधित प्रश्न
Add the following rational numbers.
\[\frac{- 8}{11} and \frac{- 4}{11}\]
Subtract the first rational number from the second in each of the following:
\[\frac{1}{4}, \frac{- 3}{8}\]
Multiply:
\[\frac{- 6}{11} \text{by} \frac{- 55}{36}\]
Simplify:
\[\left( \frac{- 9}{4} \times \frac{5}{3} \right) + \left( \frac{13}{2} \times \frac{5}{6} \right)\]
Simplify:
\[\left( \frac{1}{4} \times \frac{2}{7} \right) - \left( \frac{5}{14} \times \frac{- 2}{3} \right) + \left( \frac{3}{7} \times \frac{9}{2} \right)\]
Divide:
\[\frac{2}{3} \text{by} \frac{- 7}{12}\]
For each set of rational number, given below, verify the associative property of addition of rational number:
(iv) `-1, 5/6 and (-2)/3`
Insert three rational number between:
-5 and -4
Show that x is rational, if x2 = 16.
All decimal numbers are also rational numbers.
