October 2021 1 9 Report
Привет! Помогите: 3+8 5/12, 10 6/7-3, 4 2/13+5 7/13, 8 7/12-4 2/12



                                                      Для зателей дроби. Поясняю: / -черта стоящая меджду знаменателем, чеслитилем 
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