X减5分之3减去7分之2等于12分之1怎么解 X减去12分之5等于8分之5加上6分之5等于
x-(3/5)-(2/7)=1/12所以x=(1/12) (2/7) (3/5) =(35/420) (60/420) (84/420) =175/420 =35/84x-(5/12)-(5/8) (5/6)=(35/84)-(5/12) (5/24) =(35/84)-(5/24) =105/504。
x-(3/5)-(2/7)=1/12所以x=(1/12) (2/7) (3/5) =(35/420) (60/420) (84/420) =175/420 =35/84x-(5/12)-(5/8) (5/6)=(35/84)-(5/12) (5/24) =(35/84)-(5/24) =105/504。
收起