ex 3
4 1/6 = 25/6 m
2 3/4 = 11/4 m
2) 3)
25/6 - 11/4 = (50 - 33)/12 = 17/12 = 1 5/12 m
6 = 2 * 3 ⇒ NC = 2² * 3 = 12
4 = 2²
ex 4
2) 4) 5)
3/10 + 2/5 + 1/4 = 19/20
20/20 - 19/20 = 1/20
ex 4
7 1/5 = 36/5
5 1/5 = 26/5
36/5 - 26/5 = 10/5 = 2 litri
ex 7
2) 4) 5)
3/10 + 2/5 + 1/4 = 19/20
20/20 - 19/20 = 1/20