In the U.S. House of Representatives, 2/32/32/3 of the 435 members is 290 votes.

If you mean 2/3 of votes cast rather than the full House membership, the number changes based on how many members actually vote.

Quick math

  • Full House size: 435 members.
  • Two-thirds of 435 = 290 exactly.
  • That means a 2/3 threshold in the House is usually 290 yes votes if all seats are filled.

Why it can vary

A “2/3 vote” can mean either:

  • 2/3 of the entire House membership , which is 290 of 435.
  • 2/3 of votes cast , which depends on attendance and abstentions.

In practice

For major actions like overriding a veto or passing certain special resolutions, Congress often uses the full-membership threshold, so the House number is typically 290.

If you want, I can also give the Senate number or explain the difference between a simple majority and a supermajority.