Question

urgent dau corona acum va rog​

Answer 1

Răspuns:

a) $\frac{4*5+ 4}{5} * \frac{8*1+7}{8}$= $\frac{24}{5} * \frac{15}{8}$= 3*3= =9   ( se simplifica 24 cu 8 si 15 cu 5)

b) $\frac{3*5+1}{5} *\frac{4*1+3}{4}$= $\frac{16}{5} *\frac{7}{4}$= $\frac{28}{5}$

c) $\frac{10*2+1}{2} * 5$= $\frac{21*5}{2} = \frac{105}{2}$

d) 7$*\frac{3*4+1}{4}$= $7*\frac{13}{4}$= $\frac{91}{4}$

Answer 2

Răspuns:

pune invers poza

Explicație pas cu pas: