3-3/8除以7/16-1/7等于几?

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3-3/8除以7/16-1/7等于几?
3-3/8除以7/16-1/7等于几?

3-3/8除以7/16-1/7等于几?
3-3/8÷7/16-1/7
=3-3/8×16/7-1/7
=3-(6/7+1/7)
=3-1
=2

列出来的式子应该是这样的:
3-(3/8)/(7/16)-1/7
=3-6/7-1/7
=3-(6/7+1/7)
=3-1
=2

(1÷½+0.85÷72%)×(2又16/27-1又7/12+4又11/27-5又5/12)=(1×2+0.85÷0.72)×[(2×27+16)/27-(1×12