11.计算下面各题+5/6(3/4+2/3)+37.5%+6/
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算下面各题:
5/6(3/4+2/3)+37.5%+6
=5/6×(3×3/12+2×4/12)+37.5%+6
=5/6×(9/12+8/12)+37.5%+6 (通分)
=5/6×(9+8)/12+37.5%+6 (分数相加)
=5/6×(17/12)+37.5%+6 (分数相加)
=5/6×(17/12)+0.375+6
=5/6×(17/12)+3/8+6
=5×17/72+3×9/72+6
=85/72+27/72+6
=(85+27)/72+6 (相同分母相加时,分母不变,分子相加)
=112/72+6
=14/9+6 (约分)
=1+5/9+6
=7+5/9
=7又5/9
所以计算结果是7又5/9。
5/6(3/4+2/3)+37.5%+6
=5/6×(3×3/12+2×4/12)+37.5%+6
=5/6×(9/12+8/12)+37.5%+6 (通分)
=5/6×(9+8)/12+37.5%+6 (分数相加)
=5/6×(17/12)+37.5%+6 (分数相加)
=5/6×(17/12)+0.375+6
=5/6×(17/12)+3/8+6
=5×17/72+3×9/72+6
=85/72+27/72+6
=(85+27)/72+6 (相同分母相加时,分母不变,分子相加)
=112/72+6
=14/9+6 (约分)
=1+5/9+6
=7+5/9
=7又5/9
所以计算结果是7又5/9。
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计算下面各题:
5/6(3/4+2/3)+37.5%+6
=5/6×(3×3/12+2×4/12)+37.5%+6
=5/6×(9/12+8/12)+37.5%+6 (通分)
=5/6×(9+8)/12+37.5%+6 (分数相加)
=5/6×(17/12)+37.5%+6 (分数相加)
=5/6×(17/12)+0.375+6
=5/6×(17/12)+3/8+6
=5×17/72+3×9/72+6
=85/72+27/72+6
=(85+27)/72+6 (相同分母相加时,分母不变,分子相加)
=112/72+6
=14/9+6 (约分)
=1+5/9+6
=7+5/9
=7又5/9
所以计算结果是7又5/9。
5/6(3/4+2/3)+37.5%+6
=5/6×(3×3/12+2×4/12)+37.5%+6
=5/6×(9/12+8/12)+37.5%+6 (通分)
=5/6×(9+8)/12+37.5%+6 (分数相加)
=5/6×(17/12)+37.5%+6 (分数相加)
=5/6×(17/12)+0.375+6
=5/6×(17/12)+3/8+6
=5×17/72+3×9/72+6
=85/72+27/72+6
=(85+27)/72+6 (相同分母相加时,分母不变,分子相加)
=112/72+6
=14/9+6 (约分)
=1+5/9+6
=7+5/9
=7又5/9
所以计算结果是7又5/9。
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分数相加要先通分把分母化成相同的数,然后分子再相加。
所以3/4+2/3=9/12+8/12=(9+8)/12=17/12。
且37.5%=0.375=3/8。
剩下的步骤因为题目不完整无法计算。
所以3/4+2/3=9/12+8/12=(9+8)/12=17/12。
且37.5%=0.375=3/8。
剩下的步骤因为题目不完整无法计算。
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