Answer:
15 and 9/10 or 15.9
Step-by-step explanation:
4_2/5 + 3_3/10 = 4_4/10 + 3_3/10 = 7_7/10
8_1/5 = 8_2/10
8_2/10 + 7_7/10 = 15 9/10
or 15.9
Answer:15 and 9 10ths
