Question

СРОЧНО!!! Срочно помогите!!! ​

Answer 1

1.    $1\frac{6}{19}+2\frac{1}{38}=1\frac{12}{38}+2\frac{1}{38}=(1+2)+(\frac{12}{38}+ \frac{1}{38})=3\frac{13}{38}$

2.   $8\frac{3}{11}-5\frac{1}{22}=8\frac{6}{22}-5\frac{1}{22}=(8-5)+(\frac{6}{22}- \frac{1}{22})=3\frac{5}{22}$

3.  $1\frac{6}{15}-\frac{22}{45}=1\frac{18}{45}-\frac{22}{45}=1-\frac{4}{45}= \frac{41}{45}$

4.  $2-1\frac{4}{7}=1\frac{7}{7}- 1\frac{4}{7}=(1-1)+(\frac{7}{7}-\frac{4}{7})=\frac{3}{7}$

5.   $4\frac{3}{7}-(\frac{3}{11}+1\frac{1}{77})= 4\frac{33}{77}-(\frac{21}{77}+1\frac{1}{77})=4\frac{33}{77}-1\frac{23}{77}= 3\frac{10}{77}$

6.   $2\frac{3}{8}+1,25=2\frac{3}{8}+1\frac{25}{100}=2\frac{3}{8}+1\frac{1}{4}=2\frac{3}{8}+1\frac{2}{8}=3+(\frac{3}{8}+1\frac{2}{8})=3\frac{5}{8}$