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प्रश्न
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the sum of reciprocals of x and y.
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उत्तर
Given, x = `(-4)/9`, y = `5/12` and z = `7/18`
Reciprocal of x and y is `1/x` and `1/y`.
∴ Sum of reciprocals = `1/x + 1/y = 1/((-4)/9) + 1/(5/12)`
= `(-9)/4 + 12/5`
= `(-45 + 48)/20` ...[∵ LCM of 4 and 5 = 20]
= `3/20`
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संबंधित प्रश्न
Find the value of `(-4) ÷ 2/3`.
The product of two rational numbers is -2. If one of them is `4/7`, find the other.
Divide:
`- 3/4 "by" - 9/16`
If m is a common divisor of a and b, then `a/b = (a ÷ m)/underline`
If `p/q` is a rational number and m is a non-zero integer, then `p/q = (p xx m)/(q xx m)`.
Simplify:
`3/7 ÷ (21/-55)`
Simplify:
`1 ÷ (-1/2)`
Find the reciprocal of the following:
`20/51 xx 4/91`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the reciprocal of x + y.
What should be divided by `1/2` to obtain the greatest negative integer?
