Помогите с примером 77949+(200200-199292)*7050/9400/(137135/605)*5097

Решите задачу:

$77949+(200200-199292)*7050/9400/(137135/605)*5097= \\ 77949+908*7050/9400/(27427/121)*5097= \\ 77949+908*141/188/(27427/121)*5097= \\ 77949+227*141/47/(27427/121)*5097= \\ 77949+227*3/(27427/121)*5097= \\ 77949+227*3*121/27427*5097= \\ 77949+419997897/27427= \\ 77949+15313 \frac{8246}{27427}= \\ 93262 \frac{8246}{27427}$