Answer:
(a) {(1, 2), (2,4), (3,6), (4 , 8), (1,3), (3,5), (5,7)}
Step-by-step explanation:
add them
i think its b
Change all mixed fractions to improper fractions.1 2/7 = 7/7 + 2/7 = 9/7.Subtract9/7 - 6/7 = 3/73/7 is your answerHope this helps