2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均?2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均为正整数),ab=

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2+2/3=22×2/3,3+3/8=32×3/8,4+4/15=42×4/15…,若9+a/b=92×a/b(a、b均?2+2/3=22×2/3,3+3/8=32×3/8,4+4/15=42×4/1

2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均?2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均为正整数),ab=
2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均?
2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均为正整数),ab=

2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均?2+ 2/ 3 =22× 2 /3 ,3+ 3 /8 =32× 3 /8 ,4+ 4 /15 =42× 4 /15…,若9+a/b=92×a/b(a、b均为正整数),ab=
a=9 b=80 ab=80×9 =720