Advertisements
Advertisements
प्रश्न
Using commutativity and associativity of addition of rational numbers, express each of the following as a rational number:
उत्तर
\[\text{We have:}\]
\[\frac{2}{5} + \frac{8}{3} + \frac{- 11}{15} + \frac{4}{5} + \frac{- 2}{3}\]
\[ = (\frac{2}{5} + \frac{4}{5}) + (+\frac{8}{3} + \frac{- 2}{3}) + \frac{- 11}{15}\]
\[ = \left( \frac{2 + 4}{5} \right) + \left( \frac{8 - 2}{3} \right) + \frac{- 11}{15}\]
\[ = \frac{6}{5} + \frac{6}{3} + \frac{- 11}{15}\]
\[ = \frac{18 + 30 - 11}{15}\]
\[ = \frac{37}{15}\]
APPEARS IN
संबंधित प्रश्न
Using appropriate properties find.
`-2/3 xx 3/5 + 5/2 - 3/2 xx 1/6`
Name the property under multiplication used in given:
`-13/17 xx ((-2)/7) = (-2)/7 xx ((-13)/17)`
Verify commutativty of addition of rational numbers for each of the following pairs of rotional numbers:
Verify commutativty of addition of rational numbers for each of the following pairs of rotional numbers:
Using commutativity and associativity of addition of rational numbers, express each of the following as a rational number:
Give an example and verify the following statement.
Subtraction is not commutative for rational numbers
Rational numbers can be added or multiplied in any ______.
Using suitable rearrangement and find the sum:
`4/7 + ((-4)/9) + 3/7 + ((-13)/9)`
Verify the property x × y = y × x of rational numbers by using
`x = (-5)/7` and `y = 14/15`
Verify the property x × y = y × x of rational numbers by using
`x = (-3)/8` and `y = (-4)/9`
