能简便就简便运算 1 75%x(3/4-1/6)除7/8 2 4/5+62.5除(3/4-1/2)

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能简便就简便运算 1 75%x(3/4-1/6)除7/8 2 4/5+62.5除(3/4-1/2)

能简便就简便运算 1 75%x(3/4-1/6)除7/8 2 4/5+62.5除(3/4-1/2)
能简便就简便运算 1 75%x(3/4-1/6)除7/8 2 4/5+62.5除(3/4-1/2)

能简便就简便运算 1 75%x(3/4-1/6)除7/8 2 4/5+62.5除(3/4-1/2)
75%x(3/4-1/6)除7/8
=3/4*(3/4-1/6)*8/7
=6/7*(3/4-1/6)
=6/7*3/4-1/6*6/7
=9/14-1/7
=1/2
4/5+62.5除(3/4-1/2)
=4/5+62.5*1/(3/4-1/2)
=4/5+62.5*4
=4/5+250
=250.8
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