(4/15-5/6-2/3)*(-30)

问题描述:

(4/15-5/6-2/3)*(-30)
还有(-24)*(-5/6+1/12)-6*(7/3-7/2)
(3/10+5/3)*-30+12*(1/6+5/4)

(4/15-5/6-2/3)*(-30)
=-9+25+20
=36
(-24)*(-5/6+1/12)-6*(7/3-7/2)
=20-2-14+21
=25还有一题呢!!第一题不是等于37吗???(3/10+5/3)*-30+12*(1/6+5/4)=-9-50+2+15=-42第一题不是37么?按错一个键了(4/15-5/6-2/3)*(-30)=-8+25+20=37哦哦