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Express the following rational numbers in the form pq\frac{p}{q}, pp, qq are integers, q0q\neq 0. \newline(i) 6.466.\overline{46}\newline (ii) 0.1360.1\overline{36} \newline(iii) 3.1463.\overline{146}\newline (iv) 5.12-5.\overline{12}

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Q. Express the following rational numbers in the form pq\frac{p}{q}, pp, qq are integers, q0q\neq 0. \newline(i) 6.466.\overline{46}\newline (ii) 0.1360.1\overline{36} \newline(iii) 3.1463.\overline{146}\newline (iv) 5.12-5.\overline{12}
  1. Convert to Fraction: Given the number 6.466.\overline{46}, let's denote it as xx.
    x=6.464646...x = 6.464646...
    To convert this into a fraction, we will use the following method:
    Let's multiply xx by 100100 to shift the decimal two places to the right.
    100x=646.464646...100x = 646.464646...
    Now, subtract the original xx from this new equation to get rid of the repeating decimals.
    100xx=646.464646...6.464646...100x - x = 646.464646... - 6.464646...
    99x=64099x = 640
    Now, we can solve for xx by dividing both sides by xx00.
    xx11
  2. Check for Simplification: Now let's check for any simplification. 640640 and 9999 have no common factors other than 11, so the fraction is already in its simplest form.
  3. Convert to Fraction: For the number 0.10.1 bar(3636), let's denote it as yy.y=0.1363636...y = 0.1363636...To convert this into a fraction, we will use the following method:First, multiply yy by 1010 to shift the non-repeating decimal to the left of the decimal point.10y=1.363636...10y = 1.363636...Now, multiply yy by 10001000 to shift the repeating decimals three places to the right.1000y=136.363636...1000y = 136.363636...Subtract 363600 from 363611 to get rid of the repeating decimals.363622363633Now, we can solve for yy by dividing both sides by 363655.363666
  4. Simplify Fraction: Let's simplify the fraction 135990\frac{135}{990}. Both the numerator and the denominator are divisible by 135135. 135135=1\frac{135}{135} = 1 990135=7.4\frac{990}{135} = 7.4 However, the denominator should be an integer, so we made a mistake in our simplification. Let's correct it. Both the numerator and the denominator are divisible by 4545. 13545=3\frac{135}{45} = 3 99045=22\frac{990}{45} = 22 So, the simplified fraction is 322\frac{3}{22}.

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