Ko‘paytiring. Javobni oddiy kasr ko‘rinishida ifodalang. a) 2/5 × 4/5 = b) 1/7 × 3/4 = c) 2/3 × 3/4 = d) 2/7 × 1/2 = e) 9/10 × 2/3 = f) 7/12 × 4/5 =

Kasrlarni ko‘paytirishda suratlar va maxrajlar alohida ko‘paytiriladi, so‘ng kasr qisqartiriladi.

1. $\frac{2}{5}\times \frac{4}{5}=\frac{8}{25}$
2. $\frac{1}{7}\times \frac{3}{4}=\frac{3}{28}$
3. $\frac{2}{3}\times \frac{3}{4}=\frac{6}{12}=\frac{1}{2}$
4. $\frac{2}{7}\times \frac{1}{2}=\frac{2}{14}=\frac{1}{7}$
5. $\frac{9}{10}\times \frac{2}{3}=\frac{18}{30}=\frac{3}{5}$
6. $\frac{7}{12}\times \frac{4}{5}=\frac{28}{60}=\frac{7}{15}$

Javob: a) 8/25; b) 3/28; c) 1/2; d) 1/7; e) 3/5; f) 7/15.