Solutions by everydaycalculation.com

The simplest form of -511490 is -7370.

- Find the GCD (or HCF) of the absolute values of both numerator and denominator

GCD of 511 and 490 is**7** - Divide both the numerator and denominator by the GCD

-511 ÷ 7490 ÷ 7 - Reduced fraction: -7370

Therefore, -511/490 simplified to lowest terms is -73/70.

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