Question

13/27×8+19/27×13的简便算法？

Answer 1

解：13/27×8+19/27×13等于（ 13 ）
∵已知需求出13/27×8+19/27×13等于多少
X × （Y + Z）= X × Y + X × Z
∴13/27 × 8 + 19/27 × 13
= 13/27 × 8 + 13/27 × 19
= 13/27 × （8 + 19）
= 13/27 × 27
= 13
答：13/27×8+19/27×13等于13

Answer 2

13/27×8+19/27×13=13/27乘8+19，等于13/27乘上27就等于13

Answer 3

分母都是27，合并分子
=(13×8+19×13)/27
=(19+8)×13/27
=27×13/27
=13

Answer 4

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

Answer 5

计算
13/27*8+19/27*13
=13/27*8+13/27*19
=(8+19)*13/27
=27*13/27
=13