Question

(7 целых 3/7-3:2 целых 2/3)*5/9+1/4​

Answer 1

Ответ: ↓

$(7 \frac{3}{7} - 3 \div 2 \frac{2}{3} ) \times \frac{5}{9} + \frac{1}{4} = (\frac{52}{7} - 3 \div \frac{8}{3} ) \times \frac{5}{9} + \frac{1}{4} = ( \frac{52}{7} - 3 \times \frac{3}{8} ) \times \frac{5}{9} + \frac{1}{4} = ( \frac{52}{7} - \frac{9}{8} ) \times \frac{5}{9} + \frac{1}{4} = ( \frac{416 - 63}{56} ) \times \frac{5}{9} + \frac{1}{4} = \frac{353}{56} \times \frac{5}{9} + \frac{1}{4} = \frac{1765}{504} + \frac{1}{4} = \frac{1765 + 126}{504} = \frac{1891}{504} = 3 \frac{379}{504}$