Question

8 целых 1/12-3 целых4/15 - 1 целая 7/30

Answer 1

$8 \frac{1}{12} -3 \frac{4}{15} -1 \frac{7}{30} =8 \frac{1}{12} -3 \frac{8}{30} -1 \frac{7}{30} =8 \frac{1}{12} -4 \frac{15}{30} =8 \frac{1}{12} -4 \frac{1}{2} = \\ 8 \frac{1}{12} -4 \frac{6}{12} =7 \frac{13}{12} -4 \frac{6}{12} =3 \frac{7}{12}$