Question

1/5+3/5 =
6/9 + 7/9 =
5/4 + 8/4 =
4/7+3/7 =
5/10+11/10 =
2/10 + 8/10 =
31/10 + 12/10 =
41/10 + 4/10 =
17/10+13/10 =
9/10+91/10 =
4/100 + 7/100 =
71/100+19/100=
65/100+15/100 =
18/100 +22/100 =
50/100 + 15/100 =
16/100+44/100=
3/10+11/10+17/10 = 15/10+3/10+12/10 =
1/10+19/10+7/10 =
6/100+13/100+8/100=
17/100+13/100+50/100=
14/100+6/100+19/100=

Answer 1

1/5 + 3/5 = 4/5 ( subunitar )

6/9 + 7/9 = 13/9 ( supraunitar )

5/4 + 8/4 = 13/4 ( supraunitar )

4/7 + 3/7 = 7/7 ( echiunitar )

5/10 + 11/10 = 16/10 ( supraunitar )

2/10 + 8/10 = 10/10 ( echiunitar )

31/10 + 12/10 = 43/10 ( supraunitar )

41/10 + 4/10 = 45/10  ( supraunitar )

17/10 + 13/10 = 30/10 ( supraunitar )

9/10 + 91/10 = 100/10 ( supraunitar )

4/100 + 7/100 = 11/100 ( subunitar )

71/100 + 19/100 = 90/100 ( subunitar )

65/100 + 15/100 = 80/100 ( subunitar )

18/100 + 22/100 = 40/100 ( subunitar )

50/100 + 15/100 = 65/100 ( subunitar )

16/100 + 44/100 = 60/100 ( subunitar )

3/10 + 11/10 + 17/10 = 31/10 ( supraunitar )

15/10 + 3/10 + 12/10 = 30/10 ( supraunitar )

1/10 + 19/10 + 7/10 = 27/10 ( supraunitar )

6/100 + 13/100 + 8/100 = 27/100 ( subunitar )

17/100 + 13/100 + 50/100 = 80/100 ( subunitar )

14/100 + 6/100 + 19/100 = 39/100 ( subunitar )

Am un sfat pentru tine daca nu ai inteles prea bine fractiile ;D

Daca ai acelasi numitor  poti face adunarea intre fractii.

Succes !