-1/6+1/2= 3-|-5|= 2x(-3) -3/4x(-2/3) -8/5除以(-0.4)= -(-5)²= -3/5²=
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![-1/6+1/2= 3-|-5|= 2x(-3) -3/4x(-2/3) -8/5除以(-0.4)= -(-5)²= -3/5²=](/uploads/image/z/5130370-10-0.jpg?t=-1%2F6%2B1%2F2%3D+3-%7C-5%7C%3D+2x%28-3%29+-3%2F4x%28-2%2F3%29+-8%2F5%E9%99%A4%E4%BB%A5%EF%BC%88-0.4%EF%BC%89%3D+-%EF%BC%88-5%EF%BC%89%26%23178%3B%3D+-3%2F5%26%23178%3B%3D)
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-1/6+1/2= 3-|-5|= 2x(-3) -3/4x(-2/3) -8/5除以(-0.4)= -(-5)²= -3/5²=
-1/6+1/2= 3-|-5|= 2x(-3) -3/4x(-2/3) -8/5除以(-0.4)= -(-5)²= -3/5²=
-1/6+1/2= 3-|-5|= 2x(-3) -3/4x(-2/3) -8/5除以(-0.4)= -(-5)²= -3/5²=
-1/6+1/2=-1/6+3/6 =-1/3
3-|-5|=3-5=-2
2x(-3) -3/4x(-2/3) -8/5除以(-0.4)
= -8+1/2+8/5×5/2
=-8+1/2+4
=-4+1/2
=-7/2
-(-5)²=-25
-3/5²=-3/25 如果是整个分数的平方,则-(3/5)²=-9/25 (-3/5)²=9/25