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प्रश्न
Express each of the following as a rational number of the form \[\frac{p}{q}:\]
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उत्तर
\[\frac{- 7}{4} + 0 + \frac{- 9}{5} + \frac{19}{10} + \frac{11}{14}\]
\[ = \frac{- 245}{140} + \frac{- 252}{140} + \frac{266}{140} + \frac{110}{140}\]
\[ = \frac{( - 245) + ( - 252) + 266 + 110}{140}\]
\[ = \frac{- 245 - 252 + 266 + 110}{140}\]
\[ = \frac{- 121}{140}\]
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| Material | Recycled |
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| Aluminium cans | `5/8` |
| Glass | `2/5` |
| Scrap | `3/4` |
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