Answers

The simplest form of -688/168 is -86/21.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 688 and 168 is 8
2. Divide both the numerator and denominator by the GCD
   -688 ÷ 8/168 ÷ 8
3. Reduced fraction: -86/21
   Therefore, -688/168 simplified to lowest terms is -86/21.

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Fractions Simplifier