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प्रश्न
Using appropriate properties find.
`-2/3 xx 3/5 + 5/2 - 3/2 xx 1/6`
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उत्तर
`(-2)/3 xx 3/5 + 5/2 - 3/5 xx 1/6`
`= (-2)/3 xx 3/5 - 3/5 xx 1/6 + 5/2` .....(by commutativity)
`= (-3)/5(2/3 + 1/6) + 5/2` .....(by distributivity)
`= (-3)/5 ((4 + 1)/6) + 5/2`
`= (-3)/5 xx 5/6 + 5/2`
`= (-15)/30 + 5/2`
`= (-1)/2 + 5/2`
`= 4/2`
= 2 .
संबंधित प्रश्न
Using appropriate properties find
`2/5 xx (-3/7) - 1/6 xx 3/2 + 1/14 xx 2/5`
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:
Using commutativity and associativity of addition of rational numbers, express each of the following as a rational number:
Rational numbers can be added or multiplied in any ______.
For all rational numbers x and y, x – y = y – x.
For all rational numbers x and y, x × y = y × x.
Verify the property x × y = y × x of rational numbers by using
`x = 7` and `y = 1/2`
Verify the property x × y = y × x of rational numbers by using
`x = 2/3` and `y = 9/4`
