-1又1/4+(-5/6)=_;-2/15+(-0.8)=_.

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-1又1/4+(-5/6)=_____;-2/15+(-0.8)=_____.-1又1/4+(-5/6)=_____;-2/15+(-0.8)=_____.-1又1/4+(-5/6)=_____;-2

-1又1/4+(-5/6)=_____;-2/15+(-0.8)=_____.
-1又1/4+(-5/6)=_____;-2/15+(-0.8)=_____.

-1又1/4+(-5/6)=_____;-2/15+(-0.8)=_____.
-25/12 2/3