Ответ:
1/2+4/7-3/14= 7/14+8/14-3/14= 12/14 = 6/7
1/5-2/15+1/30=6/30-4/30+1/30= 3/30= 1/10
1/10+7/20-2/40=4/40+14/40-2/40=16/40 =4/10
17/20-3/10-11/60= 51/30-18-60-11/60= 22/60 = 11/30
3/20+7/10-3/10= 3/20+14/20-6/20= 11/20
9/40+3/4-19/20= 9/40+30/40-38/40= 1/40
Пошаговое объяснение:
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Ответ:
1/2+4/7-3/14= 7/14+8/14-3/14= 12/14 = 6/7
1/5-2/15+1/30=6/30-4/30+1/30= 3/30= 1/10
1/10+7/20-2/40=4/40+14/40-2/40=16/40 =4/10
17/20-3/10-11/60= 51/30-18-60-11/60= 22/60 = 11/30
3/20+7/10-3/10= 3/20+14/20-6/20= 11/20
9/40+3/4-19/20= 9/40+30/40-38/40= 1/40
Пошаговое объяснение: