18. 3/4 + 7/12 =

a. 1 2/5
b. 1 1/3
c. 1 10/12
d. 2/10
19. 7/9 - 1/3 =

a. 2/9
b. 4/9
c. 3/9
d. 2/10

20. 10/20 - 2/5 =

a.1/10
b. 8/20
c. 3/8
d. 2/10



p̼l̼e̼a̼s̼e̼ d̼o̼ a̼n̼s̼w̼e̼r̼ m̼y̼ q̼u̼e̼s̼t̼i̼o̼n̼ c̼a̼u̼s̼e̼ i̼ h̼a̼v̼e̼ a̼ k̼i̼l̼l̼u̼g̼o̼n̼ f̼a̼n̼f̼i̼c̼ t̼o̼ f̼i̼n̼i̼s̼h̼ a̼f̼t̼e̼r̼ t̼h̼i̼s̼