(-2/3)+丨0-5又1/6丨+丨-4又5/6丨+(-9又1/3)
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x)57~cC}3 5rM!\
]KMR>leH=ņfPetiCE
t
L<;@r(
(-2/3)+丨0-5又1/6丨+丨-4又5/6丨+(-9又1/3)
(-2/3)+丨0-5又1/6丨+丨-4又5/6丨+(-9又1/3)
(-2/3)+丨0-5又1/6丨+丨-4又5/6丨+(-9又1/3)
(-2/3)+丨0-5又1/6丨+丨-4又5/6丨+(-9又1/3)
=(5又1/16+4又5/6)-(2/3+9又1/3)
=10-10
=0