giúp tieuthienthien nhaaa mn
$\frac{3}{4}$ +$\frac{2}{7}$ =
$\frac{2}{3}$x $\frac{3}{7}$ =
Abi hoc ngu toanPundit
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giúp tieuthienthien nhaaa mn
$\frac{3}{4}$ +$\frac{2}{7}$ =
$\frac{2}{3}$x $\frac{3}{7}$ =
3/4+2/7=21/28+8/28=29/28
2/3×3/7=2×3/3×7=6/21=2/7
NHỚ vote 5 sao+câu trả lời hay nhất +cảm ơn