What's a Rational Number? | Virtual Nerd

SOLVED: Proof: Suppose r and s are rational numbers. If r s is rational, then by definition of rational, r s = a/b for some integers a and b with b ≠ 0. Also, since r and s are rational, r = i/j and s = m/n for some integers i, j, m, and n with j ≠ 0 and n ≠ 0. It follows that:r s = i/j m/n = (in jm)/(jn) Since in jm and jn are both integers with a nonzero denominator, the sum r s is a rational number. This is what was to be shown.

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Find the two numbers which on multiplication with 360​ gives a ... | Filo

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One1 is: a the identity for addition of rational numbers. b the identity for subtraction of rational numbers. c the identity for multiplication of rational numbers. d the identity for division of rational numbers.

Example 6 - Show that 3.142678 is a rational number - Examples

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