Question

4/3+1/8: 5/11
6/2*1/4: 3/5
1/7*2/3-4/5: 1/2
1/6-2/7: 3/8+4/5

Answer 1

4/3+1/8*11/5=4/3+11/40=160/120+33/120=193/120=1целая 73/120

6/2*1/4*5/3=5/4=1целая 1/4=1,25

1/7*2/3-4/5*2/1=2/21-8/5=10/105+168/105=178/105=1целая 73/105

1/6-2/7*8/3+4/5=1/6-16/21+4/5=105/630-480/630+504/630=129/630=43/210

Answer 2

$\frac{4}{3} +\frac{1}{8}:\frac{5}{11} =\frac{4}{3} +\frac{1*11}{8*5}=\frac{4}{3} +\frac{11} {40} = 1\frac{160}{120} +\frac{33}{120} = 1\frac{53}{120} .\\\\\frac{6}{2}*\frac{1}{4}:\frac{3}{5}=3*\frac{5}{3}*\frac{1}{4} = 5*\frac{1}{4}=1\frac{1}{4} .\\\\\frac{1}{7}*\frac{2}{3} - \frac{4}{5} :\frac{1}{2}=\frac{2}{21} - \frac{8}{5} = \frac{10-168}{105}= -1\frac{158}{105}. \\\\$

$\frac{1}{6} -\frac{2}{7} : \frac{3}{8}+\frac{4}{5}= \frac{1}{6} -\frac{16}{21}+\frac{4}{5} =\frac{7}{42} -\frac{32}{42}+\frac{4}{5} = -\frac{25}{42}+\frac{4}{5} = \frac{-125 +168}{210} = \frac{43}{210}$