Question

пж помогите срочно надо​

Answer 1

$1) -7,6+7,6=0$

$2) -3,84-1,97=- (3,84+1,97)=-5,81$

$3) -7,5-(-4,6) =-7.5+4.6= -(7,5-4,6)=-2,9$

$4) 7.14-(-2.1)=7.14+2,10=9,24$

$5) -1\frac{1}{7} +1\frac{3}{14} =-1\frac{2}{14} +1\frac{3}{14} =\frac{1}{14}$

$6) 1\frac{1}{5} -\frac{5}{12} =1\frac{12}{60} -\frac{30}{60} =\frac{72}{60} -\frac{30}{60} =\frac{42}{60} =\frac{7}{10} =0,7$

$7) -4,8+5,2=0,4$

$8) -5,21-(-4,8)=-5,21+4,8=-(5.21-4.80)=-0,41$