Question

efectuati: (1\3+0,25)•(1+5/7), 2/3:(0,5+0,5•1/3), 0,375•(0,25+1/6)•(0,2+1/3), 1,25:5/4-3,(3)•3/10+0,1(6),

Answer 1

(1\3+0,25)•(1+5/7)= $( \frac{1}{3} +\frac{1}{4}) * (1+ \frac{5}{7})$ amplifici prima fractie cu 4 iar a doua cu 3=> [tex] \frac{7}{12} * \frac{12}{7} [/tex] le simplifici si da =1