Question

Выполните сложение дробей.

Answer 1

$\displaystyle 1)3\frac{7}{11}+\frac{2}{11}=\frac{40}{11}+\frac{2}{11}=\frac{42}{11}=3\frac{9}{11}\\ \\2)8+3\frac{7}{8}=8+3+\frac{7}{8}=11+\frac{7}{8}=11\frac{7}{8}=11\frac{7}{8}=\frac{95}{8}=11,875\\ \\3)7\frac{13}{20}+8\frac{7}{20}=(7+8)+(\frac{13}{20}+\frac{7}{20})=15+1=16$