Question

помогите плиз решить​

Answer 1

1)$frac{7}{8}$-(-$frac{3}{10}$)=$frac{70}{80}$+$frac{24}{80}$=$frac{94}{80}$=1$frac{7}{40}$

2)11/12-17/18=33/36-34/36=-1/36

3)-3/7-9/14=-6/14-9/14=-1$frac{1}{14}$

4)-5/9-(-3/4)= -20/36-27/36=-47/36=-1$frac{13}{36}$

5)3$frac{11}{12}$-(-4$frac{4}{9}$)=1$frac{17}{36}$

6)-4$frac{5}{17}$-6=-1$frac{12}{17}$

7)1.375-3.250=-1.875=-1$frac{7}{8}$

8)-2$frac{14}{15}$-1$frac{19}{45}$=-3$frac{42+19}{45}$=-4$frac{16}{45}$

9)-3$frac{1}{6}$-(-1$frac{1}{4}$)=-1$frac{22}{24}$=-1$frac{11}{12}$