Ответ:
1)(12+4-8)/19 = 8/19
8
___
19
2)
(14-5+26)/70 = 35/70 сокращается: 7/14, 1/2
35 7 1
___ = __ = __
70 14 2
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Ответ:
1)(12+4-8)/19 = 8/19
8
___
19
2)
(14-5+26)/70 = 35/70 сокращается: 7/14, 1/2
35 7 1
___ = __ = __
70 14 2