ada yang tau jawaban nya????

a. 1/4
b. 4.75
c. 0.9
d. 0.336

1. (2/7 + 3/8) × 14/37 =
(16/56 + 21/56) × 14/37 =
37/56 × 14/37 = 0,25( 1/4 )

2. (4/13 - ( -11/26) ) + (-7/39) =
4/13 + 11/26 - 7/39 =
24/78 + 33/78 + 14/78 = 71/78(0,91)

3. 21:125 (4/15 - 2/25)
21/125 : ( 20/75 - 6/75)
21/125 : 14/75 = 0,9

4. 0.336

5. 62/15625 : 9 1/64
62/15625 : 577/64
0,0004401

Kalau boleh jadikan jawaban terbaik yah