No, two thirds and two fourths aren't equivalent.
three thirds, four fourths
No, two thirds does not equal three fourths.
(five and two thirds) minus (two and three fourths) = 2.91666667
1 and two fourths add 1 and two thirds = 2
2/4 = 6/12 and 2/3 = 8/12. So 8/12 - 6/12 has 2/3 bigger than 1/2 by 1/6.
There are many - two thirds is its simplest form, but there's eight twelfths, sixteen twenty fourths etc. But you can't get simpler than two thirds.
Three fourths is more than two thirds.
two thirds times nine fourths equals eighteen twelfths or nine sixths or 3/2.
no two thirds is much smaller on a fraction table