分数脱式计算题五年级
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/11 19:41:17
这些是小数的,现在找不到分数的,你只能锻炼锻炼自己,练一下小数化分数了,30.8÷[14-(9.85+1.07)][60-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.520×[
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1/2-1/3-1/64/7+5/11+5/75/8+2/11+9/1117/24+5/12-11/2411/12+1/6-5/245/6-5/7+1/6-1/7)..7/10+1/10=8/10=4
.(23/4-3/4)×(3×6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×5/6–2/9×37.8×5/4+1/48.6÷3/8–3/8÷69.4/7×5/9+3/7
3.(23/4-3/4)×(3×6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×5/6–2/9×37.8×5/4+1/48.6÷3/8–3/8÷69.4/7×5/9+3/
7511651-------------+-------------+-------------8612714217255258---------------1-------〔----+----〕42
分母一样的两个分数,分子相加,分母不加,例如:九分之三+九分之六=九分之九也等于一.分母不同的两个分数,找分母的最小公倍数``````例如:三分之一+七分之二,三和七的最小公倍数是21,3×7=21那
1.6/8-5/8+2/7+7/8+5/72.2/3+1/8-1/3-1/8+5/6+1/33.1/6+5/9-5/6+2/3-1/3-1/2-2/94.6/11-6/13+1/2+2/11+3/13
194-64.8÷1.8×0.936.72÷4.25×9.95180-705×624÷2.4-2.5×0.8(4121+2389)÷7671×15-974469×12+1492405×(3213-31
(26-14)×850×(2+80)(10×12)-63(27-23)×12(38-16)×24(24+38)×6(87-42)×15(84-15×3)16×(49-28)45×(84-48])(58
什么题
简便:1.5/2-(3/2+4/5)2.7/8+(1/8+1/9)3.5/6+(1/2+2/3)4.9/7-(2/7-10/21)5.3/7+49/9+4/76.8/9+15/36+3/277.5/2
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7511651-------------+-------------+-------------8612714217255258---------------1-------〔----+----〕42
(26-14)×850×(2+80)(10×12)-63(27-23)×12(38-16)×24(24+38)×6(87-42)×15(84-15×3)16×(49-28)45×(84-48])(58
1/8+2/9-1/3=(9+16-24)/72=1/72
8/63*9/70*15/28=10/63*9/28*14/15=15/56*9/56*9/70=12/35*8/105*9/10=18/35*12/35*14/45=9/56*9/28*9/20=1
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
题在哪儿?再问:是你们给我题而不是我给你们题,要搞清楚哦~
一个:2/3-(1/4+1/5)=2/3-(5/20+4/20)=2/3-9/20=13/60