
4/9+2/15=多少?
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解:4/9+2/15等于( 26/45 )
∵已知需求出4/9+2/15等于多少
∴4/9 + 2/15
= (4×5)/(9×5)+(2×3)/(15×3)
= 20/45 + 6/45
= (20+6)/45
= 26/45
答:4/9+2/15等于26/45
∵已知需求出4/9+2/15等于多少
∴4/9 + 2/15
= (4×5)/(9×5)+(2×3)/(15×3)
= 20/45 + 6/45
= (20+6)/45
= 26/45
答:4/9+2/15等于26/45
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