15 4/5+ 5 3/4= tolong jawab

Kelas 4 Matematika
Bab Pecahan

15 4/5 + 5 3/4
= 15 16/20 + 5 15/20
= 20 31/20
= 20 + 31/20
= 20 + 1 11/20
= 21 11/20

15 4/5 = 79/5 
5 3/4 = 23/4 
JAWABAN:
79/5 + 23/4 = 316 + 115 = 431/20 = 21 11/20
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