Question

4/9+5/6
1 9/10 + 3 3/4
2 3/5+2/7
6 7/9-2/3
6 3/4–7/8
1 1/2-5/7
7 3/4- 5 4/5
9 3/5- 4 2/3 o sprowadzenie do wspolnego mianowika
Prosze

Answer 1

4/9 + 5/6 = 8/18 + 15/18 = 23/18 = 1 5/18
1 9/10 + 3 3/4 = 1 18/20 + 3 15/20 = 4 33/20 = 5 13/20
2 3/5 + 2/7 = 2 21/35 + 10/35 = 2 31/35
6 7/9 - 2/3  = 6 7/9 - 6/9 = 6 1/9
6 3/4 - 7/8 = 6 6/8 - 7/8 = 5 7/8
1 1/2 - 5/7 = 1 7/14 - 10/14 = 21/14 - 10/14 = 11/14
7 3/4 - 5 4/5 = 7 15/20 - 5 16/20 = 6 35/20 - 5 16/20 = 1 19/20
9 3/5 - 4 2/3 = 9 9/15 - 4 10/15 = 8 24/15 - 4 10/15 = 4 14/15