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(-27)*(-1/8)-(-13)*1/8(-4.59)*(-3/7)+1.41*3/7-(-3/7)...
(-27)*(-1/8)-(-13)*1/8
(-4.59)*(-3/7)+1.41*3/7-(-3/7) 展开
(-4.59)*(-3/7)+1.41*3/7-(-3/7) 展开
3个回答
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1.原式=1/8*(27+13)
=1/8*40
=5
2.原式=(-3/7)*(-4.59-1.41-1)
=(-3/7)*(-7)
=3
=1/8*40
=5
2.原式=(-3/7)*(-4.59-1.41-1)
=(-3/7)*(-7)
=3
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展开全部
(-27)*(-1/8)-(-13)*1/8
=27*1/8+13*1/8
=(27+13)*1/8
=40*1/8
=5
(-4.59)*(-3/7)+1.41*3/7-(-3/7)
=4.59*3/7+1.41*3/7+1*3/7
=(4.59+1.41+1)*3/7
=7*3/7
=3
=27*1/8+13*1/8
=(27+13)*1/8
=40*1/8
=5
(-4.59)*(-3/7)+1.41*3/7-(-3/7)
=4.59*3/7+1.41*3/7+1*3/7
=(4.59+1.41+1)*3/7
=7*3/7
=3
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