X-44 13/15 = 44 1/21 + 50 2/35 | 15 БАЛОВ УРАВНЕНИЕ
x = 44 1/21 + 50 2/35 + 44 13/15
x = 44 5/105 + 50 6/105 + 44 91/105
x = 138 102/105 = 138 34/35