Пошаговое объяснение:
1) 7 + 1/8 = 7 1/8
2) 5/13 + 2 = 2 5/13
3) 7 10/19 + 2/19 = 7 12/19
4) 2 + 3 2/5 = 5 2/5
5) 4 1/19 + 2 2/19 = 6 3/19
6) 8 3/10 + 4 7/10 = 12 10/10 = 13
1)7+1/8=7 1/8
2)5/13+2=2 5/13
3)7 10/19+2/19=7+(10/19+2/19)=7 12/19
4)2+3 2/5=(2+3)+2/5=5 2/5
5)4 1/19+2 2/19=(4+2)+(1/19+2/19)=6 3/19
6)8 3/10+4 7/10=(8+4)+(3/10+7/10)=12+1=13
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Пошаговое объяснение:
1) 7 + 1/8 = 7 1/8
2) 5/13 + 2 = 2 5/13
3) 7 10/19 + 2/19 = 7 12/19
4) 2 + 3 2/5 = 5 2/5
5) 4 1/19 + 2 2/19 = 6 3/19
6) 8 3/10 + 4 7/10 = 12 10/10 = 13
1)7+1/8=7 1/8
2)5/13+2=2 5/13
3)7 10/19+2/19=7+(10/19+2/19)=7 12/19
4)2+3 2/5=(2+3)+2/5=5 2/5
5)4 1/19+2 2/19=(4+2)+(1/19+2/19)=6 3/19
6)8 3/10+4 7/10=(8+4)+(3/10+7/10)=12+1=13