Answer:
11 2/8
Step-by-step explanation:
Turn to same fraction using multiplication
5 4/8 + 5 6/8
Add whole numbers and fractions sepperatly
5 + 5 + 4/8 + 6/8
10 + 10/8
10 + 1 2/8
Angle is not visible mate
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15
(18+22+17+x)/4=18
18+22+17+x=18×4
57+x=72
x=72-57
x=15
