[tex] \frac{1}{3} + \frac{4}{9} + \frac{2}{9} [/tex]
[tex]5 \times \frac{3}{8} + 7 \times \frac{5}{12} [/tex]
[tex]( \frac{3}{4} - \frac{8}{15} ) + \frac{17}{20} [/tex]
[tex]6 \times \frac{3}{5} - 2 \times \frac{7}{15} [/tex]
[tex]8 \times \frac{4}{11} + 8 \times \frac{7}{11} [/tex]
Answers & Comments
Ответ:
Объяснение:
1) 4/9+2/9=6/9=2/3
1/3+2/3=3/3=1
2) 5*3/8=15/8=1 7/8
7*5/12=35/12=2 11/12
1 7/8+2 11/12=1 21/24+2 22/24=
4 19/24
3) 6*3/5=18/5=5 3/5
2*7/15=14/15
5 3/5-14/15=5 9/15-14/15=4 2/3
4) =8*(4/11+7/11)=8*1=8