Question

1) 8 5/7 + 4 3/4 - 3 5/8
2) 6 8/15 + 4 5/18 - 3,6​

Answer 1

$1)8 \frac{5}{7} + 4 \frac{3}{4} - 3 \frac{5}{8} = 8 \frac{40}{56} + 4 \frac{42}{56} - 3 \frac{35}{56} = 9 \frac{40 + 42 - 35}{56} = 9 \frac{47}{56}$

$2)6 \frac{8}{15} + 4 \frac{5}{18} - 3.6 = 6 \frac{8}{15} + 4 \frac{5}{18} - 3 \frac{6}{10} = 6 \frac{48}{90} + 4 \frac{25}{90} - 3 \frac{60}{90} = 7 \frac{48 + 25 - 60}{90} = 7 \frac{13}{90}$