Tolong bantu ya... Beserta Caranya yang jelas Jangan asal asalan ya jawab nya Terima Kasih..

sorry cuma 2 nmer ya jawabnya

Bab Pecahan

1) 12 1/4 : 3 1/2 : 2 1/3
= 49/4 : 7/2 : 7/3
= 49/4 × 2/7 × 3/7
= 3/2 [C]

2) 3 1/5 × 1 1/9 : 2 1/3
= 16/5 × 10/9 : 7/3
= 32/9 × 3/7
= 32/21
= 1 11/21 [A]

3) 2 4/5 + 2 2/3 × 5 1/4
= 2 4/5 + 8/3 × 21/4
= 2 4/5 + 14
= 16 4/5 [B]