(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)

(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)
(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)

(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)
(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)
=2/15x25x3-1/5+1/5
=30-0
=30
如果本题有什么不明白可以追问,
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(1/3-1/5)×5²÷|-1/3|+(-1/5)-(-1/5)
=2/15×25÷1/3+（-1/5+1/5）
=10/3×3+0
=10