Question

(8 2 /15 -2 1 /3)*2 1 \2 +5 3 \4= скорей

Answer 1

Ответ:

Пошаговое объяснение:

(8 2/15 -2 1/3)*2 1/2 +5 3/4=(122/15-7/3)*5/2+23/4= (122/15-35/15)*5/2+23/4=

87/15*5/2+23/4= 87/6+23/4=174/12+69/12=243/12=20 1/4

Answer 2

Ответ:

$(8\frac{2}{15}-2\frac{1}{3})*2\frac{1}{2}+5\frac{3}{4}=(\frac{122}{15}-\frac{7}{3}) *\frac{5}{2} +\frac{23}{4}=(\frac{122}{15}-\frac{35}{15})*\frac{5}{2} +\frac{23}{4}=\frac{87}{15}*\frac{5}{2} +\frac{23}{4}=\frac{87*1}{3*2} +\frac{23}{4}=\frac{87}{6} +\frac{23}{4} = \frac{174}{12} +\frac{69}{12}= \frac{243}{12}= 20,25$