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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoProve that the following rational numbers are equal:
(i) \(-\frac{3}{7}\) and \(-\frac{18}{42}\)
(ii) \(\frac{42}{7}\) and \(6\)
Solution:
Any two rational numbers \(\frac{a}{b}\) and \(\frac{c}{d}\) are said to be equal if .
[Note: Enter the answer in alphabetical order.]
Proof:
(i) \(-\frac{3}{7}\) and \(-\frac{18}{42}\)
\(-3 \times 42\) \(=\) ......(1)
\(7 \times (-18)\) \(=\) ......(2)
Equation (1) Equation (2)
Therefore, \(-\frac{3}{7}\) and \(-\frac{18}{42}\) are .
(ii) \(\frac{42}{7}\) and \(6\)
Proof:
\(\frac{42}{7}\) \(=\) \(\frac{6}{1}\)
\(42 \times 1\) \(=\) ......(1)
\(7 \times 6\) \(=\) ......(2)
Equation (1) Equation (2)
Therefore, \(\frac{42}{7}\) and \(6\) are .
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