tolong bantuannya... 1. 5 1/4 + 3 = 2. 5 3/5 - 2 1/4 = 3. 2 2/6 × 2 4/10 = 4. 1 6/9 : 3 2/6 =

1. 5 1/4 + 3/1

21/4 + 3/1

21×1/4×1 + 3×4/1×4

21/4 + 12/4

33/4

8 1/4


2. 5 3/5 - 2 1/4

28/5 - 9/4

28×4/5×4 - 9×5/4×5

112/20 - 45/20

67/20

3 7/20


3. 2 2/6 × 2 4/10

14/6 × 24/10

14×24/6×10

336÷6/60÷6

56÷2/10÷2

28/5

5 3/5


4. 1 6/9 ÷ 3 2/6

15/9 ÷ 20/6

15/9 × 6/20

15×6/9×20

90÷10/180÷10

9÷9/18÷9

1/9