3/7乘以1.5减2/3的差,积是多少?(那是分数啊~)
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3/7乘以1.5减2/3的差,积是多少?(那是分数啊~)
3/7乘以1.5减2/3的差,积是多少?
比5.4元多1/3是多少元?
5/12-1/12×0.75(分数)=?
3/8-3/5×5/8+3/8=?
5/6×2.4-5/9+4/9=?
3/7乘以1.5减2/3的差,积是多少?
比5.4元多1/3是多少元?
5/12-1/12×0.75(分数)=?
3/8-3/5×5/8+3/8=?
5/6×2.4-5/9+4/9=?
3/7乘以1.5减2/3的差,积是多少?
3/7×(1.5-2/3)
=3/7×(3/2-2/3)
=3/7×5/6
=5/14
比5.4元多1/3是多少元?
5.4×(1+1/3)
=5.4×4/3
=7.2(元)
5/12-1/12×0.75
=5/12-1/12×3/4
=5/12-1/16
=20/48-3/48
=17/48
3/8-3/5×5/8+3/8
=3/8-3/8+3/8
=0+3/8
=3/8
5/6×2.4-5/9+4/9
=5/6×12/5-5/9+4/9
=2-5/9+4/9
=1又4/9+4/9
=1又8/9
3/7×(1.5-2/3)
=3/7×(3/2-2/3)
=3/7×5/6
=5/14
比5.4元多1/3是多少元?
5.4×(1+1/3)
=5.4×4/3
=7.2(元)
5/12-1/12×0.75
=5/12-1/12×3/4
=5/12-1/16
=20/48-3/48
=17/48
3/8-3/5×5/8+3/8
=3/8-3/8+3/8
=0+3/8
=3/8
5/6×2.4-5/9+4/9
=5/6×12/5-5/9+4/9
=2-5/9+4/9
=1又4/9+4/9
=1又8/9
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