求把这题简便运算啊啊啊啊啊15/16*5/17+2/17*5/16

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求把这题简便运算啊啊啊啊啊15/16*5/17+2/17*5/16

求把这题简便运算啊啊啊啊啊15/16*5/17+2/17*5/16
求把这题简便运算啊啊啊啊啊
15/16*5/17+2/17*5/16

求把这题简便运算啊啊啊啊啊15/16*5/17+2/17*5/16
15/16*5/17+2/17*5/16
=15/16*5/17+5/17*2/16
=5/17*(15/16+2/16)
=5/17*17/16
=5/16

=5/16*(3*5/17+2/17)
=5/16*17/17
=5/16