算式:17/15-(2/15+3/4)=?
4个回答
17/15-(2/15+3/4)=17/15-(8/60+45/60)=17/15-53/60=68/60-53/60=15/60=1/4
小红第二天看了:39÷(1+30%)=30(页)
相关问题
(-4又3/17)×(+2又2/15)-8又3/17×14又13/15-4×(-4又13/15)
(-4又3/17)x2又2/15-8又3/17x14又13/15-4x(-14又13/15)
(2.15﹢5.17+3.62)×(5.17+2.15+8.5)-(3.62+2.15+8.5+5.17)×(2.15+
观察下列算式 1^3=1 2^3=3+5 3^3=7+9+10 4^4=13+15+17+19
[17/26+0/(-1/15+2/11)]*13/17 16/15/[3/4/(7/16-1/4)]
研究下列算式3²=4*1*2+15²=4*2*3+17²=4*3*4+19²=4*4*5+111²=4*5*6+1你发现
(3.15+2.17+5.61)×(2.17+5.61+6.6)-(3.15+2.17+
1+1,2+3,3+5,4+7,1+9,2+11,3+13,4+15,1+17.第2013个算式是()+()
有一排算式:1+1,2+3,3+5,4+7,1+9,2+11,3+13,4+15,1+17,2+19,…那么()+()=
(3.15+2.17+5.61)*(2.17+5.61+6.6)—(3.15+2.17+5.61+6.6)*(2.17+