2/3-1/8-1/6= 1/3+2/5+4/15= 1/4+2/5+3/20= 1-3/4-1/8= 4/5-1/3-2/15=

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2/3-1/8-1/6= 1/3+2/5+4/15= 1/4+2/5+3/20= 1-3/4-1/8= 4/5-1/3-2/15=
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2/3-1/8-1/6= 1/3+2/5+4/15= 1/4+2/5+3/20= 1-3/4-1/8= 4/5-1/3-2/15=
2/3-1/8-1/6= 1/3+2/5+4/15= 1/4+2/5+3/20= 1-3/4-1/8= 4/5-1/3-2/15=

2/3-1/8-1/6= 1/3+2/5+4/15= 1/4+2/5+3/20= 1-3/4-1/8= 4/5-1/3-2/15=
2/3-1/8-1/6
=16/24-3/24-4/24
=3/8
1/3+2/5+4/15
= 5/15+6/15+4/15
=1
1/4+2/5+3/20
=5/20+8/20+3/20
=16/20
=4/5
1-3/4-1/8
= 1/4-1/8
=1/8
4/5-1/3-2/15
=12/15-5/15-2/15
=5/15
=1/3