Question

am nevoie urgent help me plsdddd​

Answer 1

Răspuns

Explicație pas cu pas:

a.$-\frac{3}{8} +\frac{2}{8}=-\frac{1}{8}$

b. $-\frac{7}{9}-\frac{2}{9} =-\frac{9}{9} =-1$

c.$\frac{1}{10}-\frac{31}{10}=-\frac{30}{10}=-3$

d.$\frac{1}{2}-\frac{3}{4}=\frac{2}{4} -\frac{3}{4}=-\frac{1}{4}$

e.$-\frac{1}{4}-\frac{3}{8} =-\frac{2}{8} -\frac{3}{8} =-\frac{5}{8}$

f.$-\frac{1}{3} -\frac{5}{6} -\frac{7}{18}=-\frac{6}{18}-\frac{15}{18} -\frac{7}{18} =-\frac{28}{18} =-\frac{14}{9}$

g.-0,75+1,25=0,5

h.-2,6-1,4=-4

i.-0,25+0,125=-0,125

j.0,6-0,2-1,25=-0,85

k.-0,375+0,25-1=-1,125

l.-0,125+0,25-0=0,125