The Greatest Common Divisor/Denominator is 22
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GCD(66, 90) = 6
GCD of 81 and 66 is 3.
66% = 0.66 0.66 x 88 = 58.08
To simplify 66/88, we can divide both the numerator and denominator by their greatest common factor, which is 22. This gives us 3/4 as the simplest form of 66/88. In other words, 66/88 simplifies to 3/4.
From 88 to 66 is a -25% increase, which is described as a 25% decrease.