乘法有理数混合运算,【(+3/5)+(-1/2)+(-5/12)】*60(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)
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![乘法有理数混合运算,【(+3/5)+(-1/2)+(-5/12)】*60(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)](/uploads/image/z/9288394-34-4.jpg?t=%E4%B9%98%E6%B3%95%E6%9C%89%E7%90%86%E6%95%B0%E6%B7%B7%E5%90%88%E8%BF%90%E7%AE%97%2C%E3%80%90%28%2B3%2F5%29%2B%28-1%2F2%29%2B%28-5%2F12%29%E3%80%91%2A60%28-11%29%2A%28-2%2F5%29%2B%28-11%29%2A%28%2B2%E5%8F%883%2F5%29%2B%28-11%29%2A%28-1%2F5%29)
乘法有理数混合运算,【(+3/5)+(-1/2)+(-5/12)】*60(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)
乘法有理数混合运算,
【(+3/5)+(-1/2)+(-5/12)】*60
(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)
乘法有理数混合运算,【(+3/5)+(-1/2)+(-5/12)】*60(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)
【(+3/5)+(-1/2)+(-5/12)】*60
=[3/5-1/2-5/12]*60
=36-30-25
=-19
(-11)*(-2/5)+(-11)*(+2又3/5)+(-11)*(-1/5)
=11*(2/5-13/5+1/5)
=11*(-2)
=-22