Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Giải:
69104 : 56 = 1234
60116 : 28 = 2147
32570 : 24 = 1357,0833333333
CHÚC BẠN HỌC TỐT!
\(\frac{5}{7}+\frac{5}{14}+\frac{5}{28}+\frac{5}{56}+\frac{5}{112}+\frac{5}{224}+\frac{5}{448}+\frac{5}{896}\)
\(=(\frac{5}{7}+\frac{5}{14})+(\frac{5}{28}+\frac{5}{56})+(\frac{5}{112}+\frac{5}{224})+(\frac{5}{448}+\frac{5}{896})\)
\(=\frac{15}{14}+\frac{15}{56}+\frac{15}{224}+\frac{15}{896}\)
\(=(\frac{15}{14}+\frac{15}{224})+(\frac{15}{56}+\frac{15}{896})\)
\(=\frac{255}{224}+\frac{255}{896}=\frac{1275}{896}\)
Rồi tự rút gọn nhé . Nếu số đó ko rút gọn được thì giữ nguyên
Chúc bạn học tốt :>
a) \(\frac{2}{5}+\frac{9}{15}=\frac{2}{5}+\frac{3}{5}=\frac{5}{5}=1\)
b) \(\frac{15}{45}+\frac{25}{30}=\frac{1}{3}+\frac{5}{6}=\frac{2}{6}+\frac{5}{6}=\frac{7}{6}\)
c) \(\frac{28}{32}+\frac{45}{72}=\frac{7}{8}+\frac{5}{8}=\frac{12}{8}=\frac{3}{2}\)
d) \(\frac{8}{28}+\frac{5}{30}=\frac{2}{7}+\frac{1}{6}=\frac{12}{42}+\frac{7}{42}=\frac{19}{42}\)
a) \(\frac{2}{5}+\frac{9}{15}\)=\(\frac{2}{5}+\frac{3}{5}=\frac{2+3}{5}=1\)
b)\(\frac{15}{45}+\frac{25}{30}=\frac{1}{3}+\frac{5}{6}=\frac{2}{6}+\frac{5}{6}=\frac{2+5}{6}=\frac{7}{6}\)
c)\(\frac{28}{32}+\frac{45}{72}=\frac{7}{8}+\frac{5}{8}=\frac{7+5}{8}=\frac{12}{8}=\frac{3}{2}\)
d)\(\frac{8}{28}+\frac{5}{30}=\frac{2}{7}+\frac{1}{6}=\frac{12}{42}+\frac{7}{42}=\frac{12+7}{42}=\frac{19}{42}\)
4/8 + 8/24 = 1/2+1/3 = 5/6
8/28 + 5/30 = 2/7 +1/6 = 19/42
k cho mik nha !
1.
a) \(\frac{16}{24}-\frac{1}{3}=\frac{16}{24}-\frac{8}{24}=\)\(\frac{8}{24}=\frac{1}{3}\)
b) \(\frac{4}{5}-\frac{12}{60}=\frac{48}{60}-\frac{12}{60}=\frac{36}{60}=\frac{9}{15}\)
3.
a)\(\frac{17}{6}-\frac{2}{6}=\frac{17-2}{6}=\frac{15}{6}\)
b) \(\frac{16}{15}-\frac{11}{15}=\frac{16-11}{15}=\frac{5}{15}=\frac{1}{3}\)
c) \(\frac{19}{12}-\frac{13}{12}=\frac{19-13}{12}=\frac{6}{12}=\frac{1}{2}\)
a)2/5+3/5 = 1
b)7/8+5/8 = 12/8= 3/2
c) 1/2+1/3 = 5/6
d) 2/7+1/6= 19/42
a, 2/5 + 9/15 28/32 + 45/72 b, 4/8 + 8/24 8/28 + 5/30
= 2/5 + 3/5 = 7/8 + 5/8 = 1/2 + 1/3 = 2/7 + 1/6
= 1. = 3/2. = 5/6. = 19/42.
k cho mik nha !
