Pliss bantu, beserta jawabanya​

Jawab:

Penjelasan dengan langkah-langkah:

a. 2/5d + 5/6d = (12d + 25d)/30d² = 37/30d

b. 12m/5 – 7m/3 = (36m – 35m)/15 = 1m/15

c. 36n/8 . 16/9n = 36n/9n . 16/8 = 8

d. 12/10n . 8/18n = 6/5n . 4/9n = 8/15n

e. 30/18c : 3/21c = 5/3c x 7c = 35/3c

f. 48a/27 : 8a/36 = 16a/7 x 9/2a = 72/7