解决几道简便运算题(3/5×3/4+2/5×3/4)÷5/814/9+4/7+4/9+3/72.84×[1÷(2.1-2.09)]5/6÷[4/5-(1/3-1/5)]

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解决几道简便运算题(3/5×3/4+2/5×3/4)÷5/814/9+4/7+4/9+3/72.84×[1÷(2.1-2.09)]5/6÷[4/5-(1/3-1/5)]解决几道简便运算题(3/5×3/

解决几道简便运算题(3/5×3/4+2/5×3/4)÷5/814/9+4/7+4/9+3/72.84×[1÷(2.1-2.09)]5/6÷[4/5-(1/3-1/5)]
解决几道简便运算题
(3/5×3/4+2/5×3/4)÷5/8
14/9+4/7+4/9+3/7
2.84×[1÷(2.1-2.09)]
5/6÷[4/5-(1/3-1/5)]

解决几道简便运算题(3/5×3/4+2/5×3/4)÷5/814/9+4/7+4/9+3/72.84×[1÷(2.1-2.09)]5/6÷[4/5-(1/3-1/5)]
注意加减乘除和括号的运算顺序就不难做了!
(3/5×3/4+2/5×3/4)÷5/8 =6/5
14/9+4/7+4/9+3/7 =3
2.84×[1÷(2.1-2.09)] =284
5/6÷[4/5-(1/3-1/5)]=5/4

1, 1.2
2, 3
3, 284
4, 1.25

(3/5×3/4+2/5×3/4)÷5/8 =6/5
14/9+4/7+4/9+3/7 =1+2=3
2.84×[1÷(2.1-2.09)]=2.84*100=284
5/6÷[4/5-(1/3-1/5)]=5/6÷(1-1/3)=9/5