Q. Convert the following repeating decimal to a fraction in simplest form..35Answer:
Define x as repeating decimal: Let x be the repeating decimal 0.3 with a repeating 5, so x=0.35555… We need to find an equation that we can solve for x that will eliminate the repeating decimal.
Multiply by 10: Multiply x by 10 to shift the decimal point one place to the right, which gives us 10x=3.5555…This will help us set up an equation to eliminate the repeating part.
Multiply by 100: Multiply x by 100 to shift the decimal point two places to the right, which gives us 100x=35.5555…Now we have two equations: 10x=3.5555… and 100x=35.5555…
Subtract equations: Subtract the equation 10x=3.5555… from the equation 100x=35.5555… to get 90x=32. This subtraction eliminates the repeating decimal and gives us an equation we can solve for x.
Divide by 90: Divide both sides of the equation 90x=32 by 90 to solve for x, which gives us x=9032. Now we have the decimal as a fraction, but it may not be in simplest form.
Simplify fraction: Simplify the fraction 9032 by finding the greatest common divisor (GCD) of 32 and 90. The GCD of 32 and 90 is 2.
Find GCD and divide: Divide both the numerator and the denominator by the GCD (2) to simplify the fraction, which gives us x=(32/2)/(90/2)=16/45. Now we have the fraction in simplest form.
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