Answer the ones that have red circles (5 Points and brainiest)

Answer:
2. 1
4. 1
Step-by-step explanation:
2. 8/15 + 2/5 = 14/15
since the directions say to estimate the answer is 1.
it is not 0 because it is not 1/15 etc
it is not 1/2 because it isn't 7.5/15
it is 1 because 14/15 is just one off from 15/15 which is equal to 1
4. 8/10 + 4/9 = 112/90
112/90 can be simplified by dividing by 2 so that equals 56/45
more than equal