ừ
a \(\frac{7}{24}\) + \(\frac{13}{6}\) = \(\frac{7}{24}\) + \(\frac{52}{24}\) =\(\frac{57}{24}\)
b \(\frac{12}{49}\) - \(\frac17\) = \(\frac{12}{49}\) - \(\frac{7}{49}\) = \(\frac{5}{49}\)
c \(\frac58\) x \(\frac{24}{25}\) = \(\frac35\)
d \(\frac{38}{21}\) : \(\frac{19}{3}\) = \(\frac{38}{21}\) x \(\frac{3}{19}\) = \(\frac{38}{133}\)
a 34 287x 65 = 2 228 655
b 557 130 : 42 = 13 265
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ai hỏi
100000000000000000000000000000000000000000000000000000000000000000000 giờ
thứ 3,4,2,6 nhé
ê combat o