Question

only # 12 and 15!!! please help i don't understand !

Answer 1

Step-by-step explanation:

please mark me as brainlest

Answer 2

Answers:

12. 7/15

15. 3 19/24

Step-by-step explanation:

12. 1/20 + 5/12

= 3/60 + 25/60

= 28/60

= 7/15

15. 3 3/8 + 5/12

= 3 9/24 + 10/24

= 3 19/24