Toán Lớp 7: 15/17 + 4/13 + 2/17 – 4/13 + 2/9
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Toán Lớp 7: 15/17 + 4/13 + 2/17 – 4/13 + 2/9
Comments ( 2 )
Giải đáp:
15/17 + 4/13 + 2/17 – 4/13 + 2/9
=(15/17+2/17)+(4/13-4/13)+2/9
=17/17+0/13+2/9
=1+0+2.9
=11/9
Lời giải và giải thích chi tiết:
15/7+4/13+2/17-4/13+2/9
=(15/7+2/17)+(4/13-4/13)+2/9
=17/17+0+2/9
=1+2/9
=9/9+2/9
=11/9