$-3$ $\frac{1}{7}$ $+5$ $+$$2$ $\frac{3}{7}$

0 bình luận về “$-3$ $\frac{1}{7}$ $+5$ $+$$2$ $\frac{3}{7}$”

1. `-3 1/7 + 5 + 2 3/7`

   `= (-22)/7 + 5 + 17/7`

   `= ((-22)/7 + 17/7) + 5`

   `= (-5)/7 + 5`

   `= (-5)/7 + 35/7 = 30/7`

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2. -3$\frac{1}{7}$ + 5 + 2$\frac{3}{7}$ = $\frac{-22}{7}$ + 5 + $\frac{17}{7}$ = $\frac{-5}{7}$ +5 = $\frac{30}{7}$

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