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प्रश्न
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which subtracted from y gives z.
उत्तर
Given, x = `(-4)/9`, y = `5/12` and z = `7/18`
Let we subtract A from y to get z
∴ y – A = z
⇒ `5/12 - A = 7/18`
⇒ –A = `7/18 - 5/12` = `(7 xx 2 - 5 xx 3)/36` ......[∵ LCM of 18 and 12 = 36]
= `(14 - 15)/36`
= `(-1)/36`
⇒ A = `1/36`
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