Question

А) 3 3/4 + 1 1/2 б) 2 5/6 - 1 5/12 в) 4 - 1 2/3 г) 3 2/7 - 6/7 ! !

Answer 1

$3 \frac{3}{4}+1 \frac{1}{2}= \frac{15}{4}+ \frac{3}{2}= \frac{15+6}{4}= \frac{21}{4}=5 \frac{1}{4}$

$2 \frac{5}{6}-1 \frac{5}{12}= \frac{17}{6}- \frac{17}{12}= \frac{34-17}{12}= \frac{17}{12}=1 \frac{5}{12}$

$4-1 \frac{2}{3}= \frac{12}{3}- \frac{5}{3}= \frac{7}{3}=2 \frac{1}{3}$

$3 \frac{2}{7}- \frac{6}{7}= \frac{23}{7}- \frac{6}{7}= \frac{17}{7}=2 \frac{3}{7}$