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प्रश्न
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`(-1)/5 "and" 2/9`
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उत्तर
`= (-1)/5 xx 2/9 = ((-1)xx2)/(5xx9) = (-2)/45`
And, `2/9 xx ((-1)/5) = (2xx(-1))/(9xx5) = (-2)/45`
`therefore (-1)/5 xx 2/9 = 2/9 xx (-1)/5`
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संबंधित प्रश्न
Find the product:
`3/10 xx (-9)`
Find the reciprocal(multiplicative inverse) of:
`3/5xx2/3`
Find the reciprocal (multiplicative inverse) of:
`(-8)/3xx(13)/(-7)`
Find the reciprocal (multiplicative inverse) of:
`(-3)/5xx(-1)/13`
Multiply the rational number, given below, by one (1):
`(-8)/13`
Name the multiplication property of rational number show below:
`3/5xx(-8)/9=(-8)/9xx3/5`
Fill the Blank:
The product of two positive rational numbers is always ……………
Fill in the blank:
The reciprocal of a positive rational number is ………. and the reciprocal of a negative raitonal number is ……………
If `(-5)/7 = x/28`, find the value of x.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when multiplied by y to get x.
