Question

Oblicz
1.5/6 + 2/3
2. 2/3 - 1/4
3. 2 1/5 + 3/4
4. 6 2/7 - 4 1/2
5. 7/8 · 10
6. 3/10 · 4/5
7.4 2/5 · 1 1/3
8. 4/9 : 2/14
9. 5 2/3 : 2 1/6

Answer 1

1. 5/6 + 2/3 = 5/6 + 4/6 = 9/6 = 1 1/2
2. 2/3 - 1/4 = 8/12 - 3/12 = 5/12
3. 2 1/5 + 3/4 = 11/5 + 3/4 = 44/20 + 15/20 = 59/20 = 2 19/20
4. 6 2/7 - 4 1/2 = 6 4/14 - 4 7/14 = 1 11/14
5. 7/8 · 10 = 7/4 · 5 = 35/4 = 8 3/4
6. 3/10 · 4/5 = 3/5 · 2/5 = 6/25
7. 4 2/5 · 1 1/3 = 22/5 · 4/3 = 88/15 = 5 13/15
8. 4/9 : 2/14 = 4/9 · 14/2 = 2/9 · 14 = 28/9 = 3 1/9
9. 5 2/3 : 2 1/6 = 17/3 : 13/6 = 17/3 · 6/13 = 17 · 2/13 = 34/13 = 2 8/13

Mam nadzieję, że pomogłam :)

Answer 2