1. Oyshaning vazni 38 1/4 kg. Otasining vazni Oyshaning vaznidan ikki marta og‘ir. Otasining vazni qancha?

Otasining vaznini topish uchun Oyshaning vaznini 2 ga ko‘paytiramiz:

38 1/4 × 2 = 76 2/4 = 76 1/2 kg.

Tekshirish: 76 1/2 ÷ 2 = 38 1/4 kg.

Javob: otasining vazni 76 1/2 kg.