Question

2¼+(-3⅙)
плиз помогите​

Answer 1

Решение:

2¼+(-3⅙)=

$2\frac{1}{4}+(-3\frac{1}{6})= \frac{4*2+1}{4} +(-\frac{6*3+1}{6} )=\frac{8+1}{4} +(-\frac{18+1}{6} )=\frac{9}{4} +(-\frac{19}{6} )=\frac{9}{4} -\frac{19}{6} =\\\\=\frac{9*3}{12} -\frac{19*2}{12} =\frac{27}{12} -\frac{38}{12} =\frac{27-38}{12}=\frac{-11}{12}=-\frac{11}{12}.$

Ответ: $-\frac{11}{12}.$