15又2/3,乘负14又1/3等于多少?
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解:15又2/3乘负14又1/3等于( -2021/9 ),【即约等于-224.56】
∵已知需求出15又2/3乘负14又1/3等于多少
X × Y = Z
∴15又2/3乘负14又1/3
= (15×3+2)/3 × [-(14×3+1)/3]
= 47/3 × (-43/3)
= -(47×43)/(3×3)
= -2021/9
= -224.5555556
≈ -224.56
答:15又2/3乘负14又1/3等于-2021/9,【即约等于-224.56】
∵已知需求出15又2/3乘负14又1/3等于多少
X × Y = Z
∴15又2/3乘负14又1/3
= (15×3+2)/3 × [-(14×3+1)/3]
= 47/3 × (-43/3)
= -(47×43)/(3×3)
= -2021/9
= -224.5555556
≈ -224.56
答:15又2/3乘负14又1/3等于-2021/9,【即约等于-224.56】
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