The first ten, the 14th, the 19th (women's suffrage) and the 26th.

There is no such amendment in the U.S. Constitution. Women were given the right to vote, but that is not the same as giving the same rights as men.

The amendment that does the most work in this field is the 14th, more specifically the Equal Protection clause of the 14th amendment. It's been read to require that laws that treat men and women differently be subjected to intermediate scrutiny, which requires that the law be substantially related to an important government interest. Note that the standard takes into account both the importance of the ends, as well as how closely related the means are to the ends. This standard doesn't allow for gender to be used as a substitute for more germane ways to classify groups. For example, the Virginia Military Institute was required to admit women because the state's justifications for keeping VMI all-male were generally not "important." While there were some interests that were "important," VA didn't have an "exceedlingly persuasive justification," and the complete exclusion of women from VMI wasn't "substantially related" to those goals. There are still some laws that classify on the basis of sex and are allowed to stand due to "real differences" between men and women; this is most common when the laws are in regards to pregnancy or the citizenship of a child born out of wedlock.

Women have been trying to obtain the same equal rights as men since Alice Paul established the Equal Rights Amendment (ERA) in 1923. It has yet to be ratified by the Congress and still women do not have the same rights in the constitution as men. The suffrage gave women the right to vote but they are not still considered equal. There are pros and cons to passing the ERA though.

None....the constitution does.

im not sure if its an amendment or whatever but my fist and my swift kick in the wrong spot says women are just as good as guys, a lot of my guy friends learned that the hard way.