Question

42-(12 12/15+ 18 7/15)

Answer 1

$42 - (12 \frac{12}{15} + 18 \frac{7}{15} ) = 42 - 30 \frac{19}{15} = 12 - 1 \frac{4}{15} = 11 - \frac{4}{15} = 10 \frac{11}{15}$