1/25×3/16 1/6×13/105-3/8÷25,列竖式计算?
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简便计算
1/25×3/16+1/6÷25/3-3/8÷25
=3/25×1/16+1/6×3/25-1/8×3/25
=3/25×(1/16+1/6-1/8)
=1/25×5/48
=1/240
1/25×3/16+1/6÷25/3-3/8÷25
=3/25×1/16+1/6×3/25-1/8×3/25
=3/25×(1/16+1/6-1/8)
=1/25×5/48
=1/240
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解:1/25×3/16+1/6×13/105-3/8÷25
=(1×13)/(6×105)+(1×3)/(25×16)-3/(8×25)
=13/(6×21×5)-(2×3-1×3)/(25×16)
=13/(21×6×5)-3/(25×16)
=13/(63×10)-3/(40×10)
=(13×40-3×63)/(63×40×10)
=331/25200
=(1×13)/(6×105)+(1×3)/(25×16)-3/(8×25)
=13/(6×21×5)-(2×3-1×3)/(25×16)
=13/(21×6×5)-3/(25×16)
=13/(63×10)-3/(40×10)
=(13×40-3×63)/(63×40×10)
=331/25200
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