Answers

The simplest form of -660/784 is -165/196.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 660 and 784 is 4
2. Divide both the numerator and denominator by the GCD
   -660 ÷ 4/784 ÷ 4
3. Reduced fraction: -165/196
   Therefore, -660/784 simplified to lowest terms is -165/196.

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