Пошаговое объяснение:
8:20 = 8/20 = 2/5
2/5 * 100 = 200/5 = 40%
60:80 = 60/80 = 3/4
3/4 * 100 = 300/4 = 75%
1 м = 10 дм
4:10 = 4/10 = 2/5
10:4 = 10/4 = 2 2/4 = 2 1/2
2 1/2 * 100 = 5/2 * 100 = 500/2 = 250%
Пошаговое объяснение:
8:20 = 8/20 = 2/5
2/5 * 100 = 200/5 = 40%
60:80 = 60/80 = 3/4
3/4 * 100 = 300/4 = 75%
1 м = 10 дм
4:10 = 4/10 = 2/5
2/5 * 100 = 200/5 = 40%
10:4 = 10/4 = 2 2/4 = 2 1/2
2 1/2 * 100 = 5/2 * 100 = 500/2 = 250%