Answers

The simplest form of -623/1400 is -89/200.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 623 and 1400 is 7
2. Divide both the numerator and denominator by the GCD
   -623 ÷ 7/1400 ÷ 7
3. Reduced fraction: -89/200
   Therefore, -623/1400 simplified to lowest terms is -89/200.

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