Сложите дроби
1) 1/8 + 3/7, 4/5 + 1/3, 2/3 + 2/5, 3/10 + 1/9
2) 1/2 + 5/6, 4/15 + 2/5, 7/24 + 1/4, 5/6 + 2/3
Помогите срочно!!!!!!!!!!!!!!
1) 1/8 + 3/7, 4/5 + 1/3, 2/3 + 2/5, 3/10 + 1/9
2) 1/2 + 5/6, 4/15 + 2/5, 7/24 + 1/4, 5/6 + 2/3
Помогите срочно!!!!!!!!!!!!!!
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Ответ:
Пошаговое объяснение:
1/8+3/7=7/56+24/56=31/56
4/5+1/3=12/15+5/15=17/15=1 2/15
2/3+2/5=10/15+6/15=16/15=1 1/15
3/10+1/9 =27/90+10/90=37/90
1/2+5/6=6/12+10/12=16/12=1 1/3
4/15+2/5=4/15+6/15=20/15=1 1/3
7/24+1/4 =7/24+6/24=13/24
5/6+2/3=5/6+4/6=9/6=1 1/2
3/8+3/20=15/40+6/40=21/40
8/9+1/6=16/18+3/18=19/18=1 1/18
8/15+4/9=24/45+20/45=44/45
5/6+3/10=25/30+9/30=34/30=1 2/15