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प्रश्न
Express `3/4` as a rational number with denominator:
–80
बेरीज
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उत्तर
To make the denominator –80, we have to multiply numerator and denominator by –20.
∴ `(3 xx (-20))/(4 xx (-20)) = (-60)/(-80)`
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पाठ 8: Rationals Numbers - Exercise [पृष्ठ २४८]
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संबंधित प्रश्न
Add the following rational numbers:
\[\frac{7}{- 18} and \frac{8}{27}\]
What should be subtracted from \[\left( \frac{3}{4} - \frac{2}{3} \right)\] to get\[\frac{- 1}{6}?\]
Multiply:
\[\frac{- 8}{25} \text{by} \frac{- 5}{16}\]
Simplify each of the following and express the result as a rational number in standard form:
\[\frac{- 11}{9} \times \frac{- 81}{- 88}\]
Simplify:
\[\left( \frac{13}{5} \times \frac{8}{3} \right) - \left( \frac{- 5}{2} \times \frac{11}{3} \right)\]
Simplify:
\[\left( \frac{3}{11} \times \frac{5}{6} \right) - \left( \frac{9}{12} \times \frac{4}{3} \right) + \left( \frac{5}{13} \times \frac{6}{15} \right)\]
Fill in the blanks:
The product of two positive rational numbers is always .....
Find a rational number between −3 and 1.
Find ten rational numbers between\[\frac{3}{5} \text{and} \frac{3}{4} .\]
Mark the following pairs of rational numbers on the separate number lines: `2/5` and `(- 3)/5`
