www.ndwl.net > 1/4x7/8÷2/3 1/5x5/3÷4/9 (2/3+1/4)÷11/12 9/10+5/8÷

1/4x7/8÷2/3 1/5x5/3÷4/9 (2/3+1/4)÷11/12 9/10+5/8÷

1/4×7/8÷2/3 =7/32÷2/3 =21/64 1/5×5/3÷4/9 =1/3÷4/9 =3/4 (2/3+1/4)÷11/12 =11/12÷11/12 =1 9/10+5/8÷5/7 =9/10+7/8 =71/40 你好本题已解答,如果满意 请点右下角“采纳答案”。

1)x÷14/15=1/7 x=(1/7)*(14/15)=14/(7*15)=2/15 2)(1-5/8)x=10 (8/8-5/8)x=10 (3/8)x=10 x=10/(3/8)=10*8/3=80/3 3)1/5+4x=4/5 4x=4/5-1/5 4x=3/5 x=(3/5)/4=3/20

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