[(-5/24)-(+3/8)+(-7/16)]÷1/48-(-18)×(-0.1)的二次方
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[(-5/24)-(+3/8)+(-7/16)]÷1/48-(-18)×(-0.1)的二次方
[(-5/24)-(+3/8)+(-7/16)]÷1/48-(-18)×(-0.1)的二次方
[(-5/24)-(+3/8)+(-7/16)]÷1/48-(-18)×(-0.1)的二次方
0.15873263888889
[ ( - 5/24 ) - ( + 3/8 ) + ( - 7/16 ) ] ÷ 1/48 - ( - 18 ) × ( - 0.1 ) ²
= [ - 5/24 - 3/8 - 7/16 ] × 48 - ( - 18 ) × 0.01
= - 5/24 × 48 - 3/8 × 48 - 7/16 × 48 + 0.18
= - 5 × 2 - 3 × 6 - 7 × 3 + 0.18
= - 10 - 18 - 21 + 0.18
= - 49 + 0.18
= - 48.82
2580.64
3/8=9/24 (-5/24)-(+3/8)=-14/24=-7/12
-7/12=-28/48 -7/16=-21/48
[(-5/24)-(+3/8)+(-7/16)]=-49/48
1.8=9/5 81/25=3.24
-49/48=-1225/1200 81/25=3888/1200
两数相减,最终结果 -5113/1200
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