13分之8,除以13,加上7分之1乘17分之9,加7分之1?

问题描述:

13分之8,除以13,加上7分之1乘17分之9,加7分之1?

8/13÷13+1/7*9/17+1/7
=8/169+1/7(9/17+1)
=8/169+1/7*26/17
=8/169+26/119
=952/20111+4394/20111
=5346/20111

48114/202293=0.2658

8/13÷13+1/7*9/17+1/7
=8/169+1/7(9/17+1)
=8/169+1/7*26/17
=8/169+26/119
=952/20111+4394/20111
=5346/20111

看不懂你什么意思