75乘以1/76乘以77简算

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75乘以1/76乘以77简算
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75乘以1/76乘以77简算
75乘以1/76乘以77简算

75乘以1/76乘以77简算
=(76-1)*1/76*(76+1)=(76²-1)*1/76=76-1/76=75又75/76

75乘以1/76乘以77
=75/76×(76+1)
=75/76×76+75/76×1
=75+75/76
=75又75/76

75× 1/76 ×77
=75 ×77 × 1/76
=(76-1) ×(76+1) × 1/76
=(76²-1)×1/76
=76²×1/76 -1×1/76
=76-1/76
=75又75/76

75×1/76×77
=75×1/76×(76+1)
=75×(1+1/76)
=75又75/76