88分之87乘以87怎样简便计算?
3个回答
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解:88分之87乘以87等于( 7569/88 ),【即约等于86.01】
∵已知需求出88分之87乘以87等于多少
A × (B - C)= A × B - A × C
∴88分之87乘以87
= 87/88 × (90 - 3)
= 87/88 × 90 - 87/88 × 3
= 3915/44 - 261/88
= 7830/88 - 261/88
= 7569/88
= 86.01136364
≈ 86.01
答:88分之87乘以87等于7569/88,【即约等于86.01】
∵已知需求出88分之87乘以87等于多少
A × (B - C)= A × B - A × C
∴88分之87乘以87
= 87/88 × (90 - 3)
= 87/88 × 90 - 87/88 × 3
= 3915/44 - 261/88
= 7830/88 - 261/88
= 7569/88
= 86.01136364
≈ 86.01
答:88分之87乘以87等于7569/88,【即约等于86.01】
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