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<5/8加1/27>乘八加19/27等于多少?

(5/8+1/27)×8+19/27 =5/8×8+1/27×8-19/27 =5+8/27-19/

6

(3/8+1/27)X8+19/27 =3/8X8+(1/27X8+19/27) =3+1 =

(3/8+1/27)x8+19/27 =3/8x8+1/27x8+19/27 =3+(8/27+19

(5/8+1/27)×8+19/27 =5/8×8+1/27×8+19/27 =5+8/27+1

解2/3×27/19 =2×9/19 -18/19

这样

13/27×8+19/27×13 =13/27×8+13/27×19 =13/27×(8+19) =

(八分之三加二十七分之一)×八加二十七分之十九 =八分之三×八+二十七分之一×八+二十七分之十九

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