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2022-06-23 10:27:11
3/13 x 2/5 + 2/5 x 10/13 + 3/5
= (3/13 + 10/13)x 2/5 + 3/5
= 1 x 2/5 + 3/5
= 2/5 + 3/5
= 5/5 = 1
2022-06-23 10:24:03