In finding the halfway between two fractions, we will just add the two given fractions and divide it by 2.
In adding two dissimilar fractions, we will first change it to similar fractions.
We will find the Least Common Denominator of the two fractions which is 63
We will now divide the sum by 2.
55/63 ÷ 2 = 55/126
Therefore, the halfway between 3/7 and 4/9 is 55/126