1. Qo‘shing. a) 1/4 + 2/5; b) 3/7 + 1/10; c) 5/6 + 3/4; d) 5/8 + 2/3.

Kasrlarni qo‘shishda umumiy maxrajga keltirib, suratlarini qo‘shamiz.

1. a) \(\frac{1}{4}+\frac{2}{5}=\frac{5}{20}+\frac{8}{20}=\frac{13}{20}\).
2. b) \(\frac{3}{7}+\frac{1}{10}=\frac{30}{70}+\frac{7}{70}=\frac{37}{70}\).
3. c) \(\frac{5}{6}+\frac{3}{4}=\frac{10}{12}+\frac{9}{12}=\frac{19}{12}=1\frac{7}{12}\).
4. d) \(\frac{5}{8}+\frac{2}{3}=\frac{15}{24}+\frac{16}{24}=\frac{31}{24}=1\frac{7}{24}\).