Advertisements
Advertisements
Question
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`(-1)/5 "and" 2/9`
Advertisements
Solution
`= (-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`
APPEARS IN
RELATED QUESTIONS
What should be subtracted from -2 to get `3/8`?
Evaluate:
`(-11)/9 xx (-51)/(-44)`
Write the Reciprocal (Multiplicative Inverse) of Rational Number, Given Below:
`(-7)/(-8)`
Multiply:
`(-7)/10 "and" (-8)/15`
Name the multiplication property of rational number show below:
`3/5xx(-8)/9=(-8)/9xx3/5`
Name the multiplication property of rational number show below:
`4/5xx(3/(-8)+(-4)/7)=4/5xx3/(-8)+4/5xx(-4)/7`
Name the multiplication property of rational number show below:
`8/(-9)xx1=1xx8/(-9)=8/(-9)`
Fill in the blank:
The product of a rational number and its reciprocal is ………..
`1/2 = 6/underline`
______ × `((-2)/5)` = 1.
