Сначала выполним операции в скобках:
2/3+7/8−5/82/3 + 7/8 - 5/82/3+7/8−5/8 1−5/171 - 5/171−5/17 =16/24+21/24−15/2416/24 + 21/24 - 15/2416/24+21/24−15/24 17/17−5/1717/17 - 5/1717/17−5/17 =22/2422/2422/24 12/1712/1712/17 =11/1211/1211/12 12/1712/1712/17 =132/204 = 33/51
Ответ: 33/51
Сначала выполним операции в скобках:
2/3+7/8−5/82/3 + 7/8 - 5/82/3+7/8−5/8 1−5/171 - 5/171−5/17 =
16/24+21/24−15/2416/24 + 21/24 - 15/2416/24+21/24−15/24 17/17−5/1717/17 - 5/1717/17−5/17 =
22/2422/2422/24 12/1712/1712/17 =
11/1211/1211/12 12/1712/1712/17 =
132/204 = 33/51
Ответ: 33/51