What are six amendments to the US Constitution which extended voting rights?

Answer 1

Four Constitutional amendments dealt with voting rights. They are:

The Fifteenth Amendment was ratified in 1870 and prohibited discrimination because of race, particularly in regard to African-American males.

The Nineteenth Amendment granted women the right to vote, It was ratified in 1920.

The Twenty-third Amendment:was ratified in 1961 and granted citizens residing in the District of Columbia the right to vote in presidential elections,

Ratified in 1971, the Twenty-sixth Amendment reduced the minimum voting age from 21 to 18.

Answer 2

The 14th and the 20 Amendments were added in the 19th and 20th centuries. The 14th Amendment allowed men of all races to vote and the 20th Amendment allowed all women to vote.