5/4 * 6/17х- 5/4*1/5=5/4
15/34х - 1/4=5/4
15/34х=5/4+1/4
15/34х=3/2
х= 3/2 / 15/34
х=3/2 * 34/15(сокращаем 3 и 15 на 3, 34 и 2 на 2)
х=17/5=3 2/5
ответ: 3 2/5
5/4 * 6/17х- 5/4*1/5=5/4
15/34х - 1/4=5/4
15/34х=5/4+1/4
15/34х=3/2
х= 3/2 / 15/34
х=3/2 * 34/15(сокращаем 3 и 15 на 3, 34 и 2 на 2)
х=17/5=3 2/5
ответ: 3 2/5