Question

помогите с дообями, пожалуйста​

Answer 1

1) $(3\frac{1}{2} -2 \frac{2}{3} +5\frac{5}{6}+4\frac{3}{5} )*24=(\frac{7}{2}-\frac{8}{3}+\frac{35}{6}+\frac{23}{5} )*24=\frac{7*15-8*10+35*5+23*6}{30}*24= \frac{105-80+175+138}{30}*24= \frac{338}{30}*\frac{24}{1}= \frac{338}{5}*\frac{4}{1}= \frac{1352}{5}=270\frac{2}{5}$

2) $(5\frac{3}{8}+18\frac{1}{2}-7\frac{5}{24} ):16\frac{2}{3}=(\frac{43}{8}+\frac{37}{2}- \frac{173}{24}):\frac{50}{3}=(\frac{43*3+37*12-173}{24} ):\frac{50}{3}=\frac{129+444-173}{24} :\frac{50}{3}=\frac{400}{24} :\frac{50}{3} = \frac{50}{3} :\frac{50}{3}=\frac{50}{3}*\frac{3}{50}=1$

Answer 2

1) (3 1/2 - 2 2/3 + 5 5/6 + 4 3/5) * 24 =
= (7/2 - 8/3 + 35/6 + 23/5) * 24 =
(105/30 - 80/30 + 175/30 + 138/30) * 24 =
= 238/30 * 24 = 238/5 * 4 = 952/5 = 190 4/5

2) (5 3/8 + 18 1/2 - 7 5/24) : 16 2/3 =
= (43/8 + 37/2 - 173/24) : 50/3 =
= (129/24 + 444/24 - 173/24) : 50/3 =
= 400/24 : 50/3 = 400/24 * 3/50 = 8/8 = 1