Помогите, позязя:3.............
34/74 × 122/55 - 34/74 × 48/55 = 34/74 × (122/55 - 48/55) =
34/74 × 74/55 = 34/55
34/74 ×122/55-34/74×48/55= 1 39 /2035-816/2035=34/55