7/15- ()/3=2/15 ()/8-1/10=1/407/15- ()/3=2/15 ()/8-1/10=1/405/()+5/9=5/6

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7/15-()/3=2/15()/8-1/10=1/407/15-()/3=2/15()/8-1/10=1/405/()+5/9=5/67/15-()/3=2/15()/8-1/10=1/407/15

7/15- ()/3=2/15 ()/8-1/10=1/407/15- ()/3=2/15 ()/8-1/10=1/405/()+5/9=5/6
7/15- ()/3=2/15 ()/8-1/10=1/40
7/15- ()/3=2/15 ()/8-1/10=1/40
5/()+5/9=5/6

7/15- ()/3=2/15 ()/8-1/10=1/407/15- ()/3=2/15 ()/8-1/10=1/405/()+5/9=5/6
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