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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Insert one rational number between 4.2 and 3.6. - Mathematics

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प्रश्न

Insert one rational number between 4.2 and 3.6.

योग
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उत्तर

The rational number between 4.2 and 3.6

`= (4.2+3.6)/2 = (7.8)/2 = 3.9`

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अध्याय 1: Rational Numbers - Exercise 1 (E) [पृष्ठ २७]

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सेलिना Concise Mathematics [English] Class 8 ICSE
अध्याय 1 Rational Numbers
Exercise 1 (E) | Q 3.4 | पृष्ठ २७

संबंधित प्रश्न

Add the following rational numbers:

\[\frac{- 5}{16} and \frac{7}{24}\]

Re-arrange suitably and find the sum in each of the following:

\[\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}\]

Re-arrange suitably and find the sum in each of the following:

\[\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}\]

Evaluate each of the following:

\[- 2 - \frac{5}{9}\]

Simplify:

\[\left( \frac{3}{11} \times \frac{5}{6} \right) - \left( \frac{9}{12} \times \frac{4}{3} \right) + \left( \frac{5}{13} \times \frac{6}{15} \right)\]

Mark the following pairs of rational numbers on the separate number lines: `2/5  "and" - 4/5`


Select those which can be written as a rational number with denominator 4 in their lowest form:

`7/8, 64/16, 36/(-12), (-16)/17, 5/(-4), 140/28`


The table shows the portion of some common materials that are recycled.

Material Recycled
Paper `5/11`
Aluminium cans `5/8`
Glass `2/5`
Scrap `3/4`
  1. Is the rational number expressing the amount of paper recycled more than `1/2` or less than `1/2`?
  2. Which items have a recycled amount less than `1/2`?
  3. Is the quantity of aluminium cans recycled more (or less) than half of the quantity of aluminium cans?
  4. Arrange the rate of recycling the materials from the greatest to the smallest.

Write a rational number in which the numerator is less than ‘–7 × 11’ and the denominator is greater than ‘12 + 4’.


Write the following numbers in the form `p/q`, where p and q are integers:

One-fourth


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