2 3/4 * 1,5 mhn dgn cr nya

= 11/4 * 15/10
= 165/40
= 33/8
= 4 1/8

= 2 3/4 x 1,5
= 11/4 x 15/10
= 165/40
= 4 5/40
= 4 1/8 (pecahan campuran)
= 4,125

Maaf kalau salah^^
Jadikan terbaik ya, makasih