www.khana a All Bookma Khan Academy Get Al Tutoring NEW Donate maria.tadeo Which equation shows how to use equivalent fractions to evaluate 3 1 + =? 321222 + + + + 22222 Choose 1 answer: 3 13 =+= 13 = +== 9 12 9 12 13 十一 13 + == = 3 12 12 12 34 34 34 2 of 10 Check