(5/12-5/16)*4/5+2/3 8/9÷【4/5÷(3/5-1/4)】?
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【1】(5/12-5/16)*4/5+2/3
=5/12×4/5-5/16×4/5+2/3
=1/3-1/4+2/3
=1-1/4
=3/4
【2】8/9÷【4/5÷(3/5-1/4)】
=8/9÷4/5×(3/5-1/4)
=10/9×(3/5-1/4)
=2/3-5/18
=7/18,5,【1】(5/12-5/16)*4/5+2/3 = (20-15)/48*4/5+2/3
=1/12+8/12
=9/12
...,0,(5/12-5/16)*4/5+2/3 8/9÷【4/5÷(3/5-1/4)】
【1】(5/12-5/16)*4/5+2/3 【2】8/9÷【4/5÷(3/5-1/4)】
=5/12×4/5-5/16×4/5+2/3
=1/3-1/4+2/3
=1-1/4
=3/4
【2】8/9÷【4/5÷(3/5-1/4)】
=8/9÷4/5×(3/5-1/4)
=10/9×(3/5-1/4)
=2/3-5/18
=7/18,5,【1】(5/12-5/16)*4/5+2/3 = (20-15)/48*4/5+2/3
=1/12+8/12
=9/12
...,0,(5/12-5/16)*4/5+2/3 8/9÷【4/5÷(3/5-1/4)】
【1】(5/12-5/16)*4/5+2/3 【2】8/9÷【4/5÷(3/5-1/4)】
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