Решение:
Вариант 5
- а) \(8 - 3 \frac{7}{15} = 7 \frac{15}{15} - 3 \frac{7}{15} = 4 \frac{8}{15}\)
- б) \(5 \frac{13}{15} + \frac{7}{12} = 5 \frac{52}{60} + \frac{35}{60} = 5 \frac{87}{60} = 6 \frac{27}{60} = 6 \frac{9}{20}\)
- в) \(2 \frac{1}{8} + \frac{5}{12} = 2 \frac{3}{24} + \frac{10}{24} = 2 \frac{13}{24}\)
- г) \(7 \frac{3}{5} - 3 \frac{5}{6} = 7 \frac{18}{30} - 3 \frac{25}{30} = 6 \frac{48}{30} - 3 \frac{25}{30} = 3 \frac{23}{30}\)
Ответ: а) \(4 \frac{8}{15}\); б) \(6 \frac{9}{20}\); в) \(2 \frac{13}{24}\); г) \(3 \frac{23}{30}\).