Х+9 7/9 = 28 2/15 помогите плии

Question

Х+9 7/9 = 28 2/15
помогите плии

Answer 1

X = 28 2/15 - 9 7/9
x = 28 6/45 - 9 35/45
x = 27 51/45 - 9 35/45
x = 18 16/45