21/5 × 2/4 = ..... tolong ya kak

[tex] \frac{21}{5} \times \frac{2 \div 2}{4 \div 2} = \frac{21}{5} \times \frac{1}{2} = \frac{21}{10} \\ = 2 \frac{1}{10} [/tex]

21/5×2/4 = 21×2=42
5×4=20

jawababya 42/40 bisa disederhanakan

1 2/40 bsa disederhanakan
1 1/20

jadikan yang terbaik please