Question

Найдите значение выражения 7 1/12 +6. в) 5/7+3 1/4

Answer 1

$7 \frac{1}{12} +6 = 13 \frac{1}{12} \\\\ \frac{5}{7} +3 \frac{1}{4} = \frac{20}{28} +3 \frac{7}{28} =3 \frac{27}{28}$

Answer 2

$7 \frac{1}{12}+6= \frac{85}{12}+ \frac{6}{1}= \frac{85+72}{12} = \frac{157}{12}=13 \frac{1}{12}$

$\frac{5}{7}+3 \frac{1}{4}= \frac{5}{7}+ \frac{13}{4}= \frac{20+91}{28}= \frac{111}{28}=3 \frac{27}{28}$