1.2 4/5+3= 2.3 3/7+5 2/4= 3.3 2/3-2 1/4= 4.5/6+3/4= 5.7/12-5/4= pake cara ya!

1. 2 4/5 + 3 = 5 4/5
2. 3 3/7 + 5 2/4
= 3 12/28 + 5 14/28
= 8 26/28
= 8 13/14

3. 3 2/3 - 2 1/4
= 3 8/12 - 2 3/12
= 1 5/12

4. 5/6 + 3/4
=10/12 + 9/12
= 19/12
= 1. 7/12

5. 7/12-5/4
=7/12 - 15/12
=-8/12

1.17

2.46
3.20
4.9
5.2 kalau salah maaf