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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`
Name the property under multiplication used in given:
`-19/29 xx 29/(-19) = 1`
Verify the commutative property for addition and multiplication for the rational numbers `(-10)/11` and `(-8)/33`
Give an example and verify the following statement.
Subtraction is not commutative for rational numbers
`- 3/8 + 1/7 = 1/7 + ((-3)/8)` is an example to show that ______
Rational numbers can be added or multiplied in any ______.
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`
Verify the property x × y = y × x of rational numbers by using
`x = (-5)/7` and `y = 14/15`
