【1又1/24-(3/8+1/6-3/4)×24】÷(-5)………小括号里简算
=【1又1/24-(3/8×24+1/6×24-3/4×24)】÷(-5)
=【1又1/24-(9+4-18)】÷(-5)
=【1又1/24+5】×(-1/5)………乘法分配律
=25/24×(-1/5)+5×(-1/5)
=(-5/24)+(-1)
=-1又5/24
【1又1/24-(3/8+1/6-3/4)×24】÷(-5)………小括号里简算
=【1又1/24-(3/8×24+1/6×24-3/4×24)】÷(-5)
=【1又1/24-(9+4-18)】÷(-5)
=【1又1/24+5】×(-1/5)………乘法分配律
=25/24×(-1/5)+5×(-1/5)
=(-5/24)+(-1)
=-1又5/24