Question

Bài tập 76 SGK Toán lớp 6 tập 2 trang 39

HELP ME!

Answer 1

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Answer 2

A=\(\dfrac{7}{19}\).\(\left(\dfrac{8}{11}+\dfrac{3}{11}\right)\)+\(\dfrac{12}{19}\)

A=\(\dfrac{7}{19}.1+\dfrac{12}{19}\)

A= \(\dfrac{7}{19}+\dfrac{12}{19}=1\)

B=\(\dfrac{5}{9}.\left(\dfrac{7}{13}+\dfrac{9}{13}-\dfrac{3}{13}\right)\)

B=\(\dfrac{5}{9}.1=\dfrac{5}{9}\)