16/13-19/11-2/11+10/13等于多少?
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解:16/13-19/11-2/11+10/13等于( 1/11 )
∵已知需求出16/13-19/11-2/11+10/13等于多少
∴16/13-19/11-2/11+10/13
= 16/13 + 10/13 - 19/11 - 2/11
= (16/13 + 10/13)-(19/11 + 2/11)
= 26/13 - 21/11
= 2 - 21/11
= (2×11)/11 - 21/11
= 22/11 - 21/11
= (22-21)/11
= 1/11
答:16/13-19/11-2/11+10/13等于1/11
∵已知需求出16/13-19/11-2/11+10/13等于多少
∴16/13-19/11-2/11+10/13
= 16/13 + 10/13 - 19/11 - 2/11
= (16/13 + 10/13)-(19/11 + 2/11)
= 26/13 - 21/11
= 2 - 21/11
= (2×11)/11 - 21/11
= 22/11 - 21/11
= (22-21)/11
= 1/11
答:16/13-19/11-2/11+10/13等于1/11
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