Toán N=2/3:2/4+4/3*5/2-19/15*1/3 trả lời đầy đủ các bước 12/09/2021 By Isabelle N=2/3:2/4+4/3*5/2-19/15*1/3 trả lời đầy đủ các bước
N= 2/3:2/4+4/3*5/2-19/15*1/3 = 4/3 + 4/3 x 5/2 -19/15×1/3 = 4/3x(1+5/2) -19/45 = 4/3 x7/2-19/45 = 14/3-19/45 = 191/45 Học tốt! Trả lời
Đáp án: N= $\frac{2}{3}$ : $\frac{2}{4}$ + $\frac{4}{3}$ x $\frac{5}{2}$ -$\frac{19}{15}$ x$\frac{1}{3}$ = $\frac{2}{3}$ x 2 + $\frac{4}{3}$ x $\frac{5}{2}$ -$\frac{19}{15}$ x$\frac{1}{3}$ = $\frac{2}{3}$ x 2 + $\frac{20}{6}$ -$\frac{19}{45}$ = $\frac{4×30}{90}$ + $\frac{20×15}{90}$-$\frac{19×2}{90}$ = $\frac{382}{90}$ = $\frac{191}{45}$ Trả lời
N= 2/3:2/4+4/3*5/2-19/15*1/3
= 4/3 + 4/3 x 5/2 -19/15×1/3
= 4/3x(1+5/2) -19/45
= 4/3 x7/2-19/45
= 14/3-19/45
= 191/45
Học tốt!
Đáp án:
N= $\frac{2}{3}$ : $\frac{2}{4}$ + $\frac{4}{3}$ x $\frac{5}{2}$ -$\frac{19}{15}$ x$\frac{1}{3}$
= $\frac{2}{3}$ x 2 + $\frac{4}{3}$ x $\frac{5}{2}$ -$\frac{19}{15}$ x$\frac{1}{3}$
= $\frac{2}{3}$ x 2 + $\frac{20}{6}$ -$\frac{19}{45}$
= $\frac{4×30}{90}$ + $\frac{20×15}{90}$-$\frac{19×2}{90}$
= $\frac{382}{90}$ = $\frac{191}{45}$