Question

Aratati cel mai mic numitor comun al numerelor si  apoi aduceti fractiile la cel mai mic numitor comun: $\frac{3}{5} \frac{7}8} ; \frac{5}{16} \frac{11}{24} ; \frac{1}{18} \frac{5}{63} ; \frac{7}{11} \frac{8}{55}$ Multumesc pentru ajutor

Answer 1

5=5
8=2³
[5,8]=5·2³=40
numitorul comun este 40
3/5=amplificam cu 8=(3·8)/5·8=24/40
7/8=(7·5)/40=35/40

16=2⁴
24=3x2³
[16,24]=3x2⁴=48
5/16=(3x5)/48=15/48
11/24=(2x11)/48=22/48

18=2x3²
63=7x3²
[18,63]=2x7x3²=126
1/18=(1x7)/126=7/126
5/63=(5x2)/126=10/126

11=11
55=5x11
[11,55]=5x11=55
7/11=(7x5)/55=35/55
si 8/55