111135—×（—-—）×—÷—532114有点分家、应该能看清吧、也就是5/11×（3/1-2/1）×3/11÷4/5

Question

11 1 1 3 5
—×（— - —）×— ÷ —
5 3 2 11 4
有点分家、应该能看清吧、 也就是
5/11×（3/1-2/1）×3/11÷4/5

Answer 1

11 1 1 3 5
—×（— - —）×— ÷ —
5 3 2 11 4
11 1 3 4
=—×（-—）×—× —
5 6 11 5
1 1 3 4
=—×（-—）×—× —
5 6 1 5
1 1 1 4
=—×（-—）×—× —
5 2 1 5
1 1 1 2
=—×（-—）×—× —
5 1 1 5
2
=-—
25