简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)
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![简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)](/uploads/image/z/69405-69-5.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97+%28-98%29%2A%28-0.125%29%2B98%2A1%2F8%2A%28-4%2F7%29+%EF%BC%88-1%2F12-1%2F36%2B3%2F4-1%2F6%EF%BC%89%2A%EF%BC%88-36%EF%BC%89+-19%E5%8F%8824%2F25%2A%EF%BC%88-5%EF%BC%89)
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简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)
简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)
简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)
(-98)*(-0.125)+98*1/8*(-4/7)
=98*0.125-98*0.125*(4/7)
=98*0.125*(1-4/7)
=98*(3/7)*(1/8)
=42*(1/8)
=21/4
(-1/12-1/36+3/4-1/6)*(-36)
=3+1-27+6
=-17
-19又24/25*(-5)
=-(19+24/25)*(-5)
=19*5+24/5
=95+4又4/5
=99又4/5