yes
Two sevenths is bigger.
2/21
One half is the biggest.
Three of anything is generally bigger than two of the same thing.
2/21
1 1/2
Well, firstly, the LCM (Lowest Common Multiple) of 3 and 7 is 21. Try to convert those fractions into fractions with denominators of 21. Multiply 3x7 in one thirds and 1x7, which changes one third to seven twenty-oneths. Multiply 7x3 in two sevenths and 2x3, which changes two sevenths to six twenty-oneths. Therefore, one third (seven twenty-oneths) is greater than two sevenths (six twenty-oneths).
Two thirds.
two fifths.
no
1/4 < 2/7