Q. Express the following rational numbers in the form qp, p, q are integers, q=0. (i) 6.46 (ii) 0.136(iii) 3.146 (iv) −5.12
Convert to Fraction: Given the number 6.46, let's denote it as x. x=6.464646... To convert this into a fraction, we will use the following method: Let's multiply x by 100 to shift the decimal two places to the right. 100x=646.464646... Now, subtract the original x from this new equation to get rid of the repeating decimals. 100x−x=646.464646...−6.464646... 99x=640 Now, we can solve for x by dividing both sides by x0. x1
Check for Simplification: Now let's check for any simplification. 640 and 99 have no common factors other than 1, so the fraction is already in its simplest form.
Convert to Fraction: For the number 0.1 bar(36), let's denote it as y.y=0.1363636...To convert this into a fraction, we will use the following method:First, multiply y by 10 to shift the non-repeating decimal to the left of the decimal point.10y=1.363636...Now, multiply y by 1000 to shift the repeating decimals three places to the right.1000y=136.363636...Subtract 360 from 361 to get rid of the repeating decimals.362363Now, we can solve for y by dividing both sides by 365.366
Simplify Fraction: Let's simplify the fraction 990135. Both the numerator and the denominator are divisible by 135. 135135=1135990=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 45. 45135=345990=22 So, the simplified fraction is 223.