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14/15 và 141414/151515
Ta quy đồng mẫu số hai phân số. Mẫu số chung : 151515
14/15 x 10101 =141414/151515 và giữ nguyên phân số 141414/151515
Vì 141414/151515 = 141414/151515 nên 14/15 = 141414/151515
\(M=\frac{5555}{6666}-\frac{246246}{369369}+\frac{222222}{151515}\)
\(M=\frac{5}{6}-\frac{2}{3}+\frac{22}{15}\)
\(M=\frac{49}{30}\)
\(A=\frac{3333}{4545}+\frac{1}{15}+\frac{1111}{5555}\)
\(=\frac{11}{15}+\frac{1}{15}+\frac{1}{5}\)
\(=\frac{12}{15}+\frac{3}{15}\)
\(=1\)
\(A=\frac{3333}{4545}+\frac{1}{15}+\frac{1111}{5555}\)
\(=\frac{11}{15}+\frac{1}{15}+\frac{1}{5}\)
\(=\frac{12}{15}+\frac{3}{15}\)
\(=1\)
\(\frac{3333}{4444}-\frac{121121}{363363}+\frac{131313}{151515}\)
\(=\frac{3}{4}-\frac{121}{363}+\frac{13}{15}\)
\(=\frac{3}{4}-\frac{1}{3}+\frac{13}{15}\)
\(=\frac{45}{60}-\frac{20}{60}+\frac{42}{60}\)
\(=\frac{45-20+42}{60}\)
\(=\frac{67}{60}\)
52/33
to lam dung luon neu cau muon
thi cau vao cau hoi cua ngo anh tu
luc do cau se nhin dc su dien giai
cua bai toan
\(M=\frac{5555}{6666}-\frac{246246}{369369}+\frac{222222}{151515}=\frac{5}{6}-\frac{2}{3}+\frac{22}{15}=\frac{25}{30}-\frac{20}{30}+\frac{44}{30}=\frac{49}{30}\)
\(\frac{5555}{6666}\)= \(\frac{5}{6}\)
\(\frac{246246}{369369}\)= \(\frac{82}{123}\)
\(\frac{222222}{151515}\)= \(\frac{22}{15}\)
M= \(\frac{5}{6}\)+ \(\frac{82}{123}\)+ \(\frac{22}{15}\)
M= \(\frac{1025}{1230}\)+ \(\frac{820}{1230}\)+ \(\frac{6724}{1230}\)
M= \(\frac{1845}{1230}\)+ \(\frac{6724}{1230}\)
M= \(\frac{8569}{1230}\)
tk nhé
\(\left(\frac{141414}{151515}+\frac{3333}{5555}\right):3\)
\(=\left(\frac{14}{15}+\frac{3}{5}\right)\cdot\frac{1}{3}\)
\(=\frac{23}{15\cdot3}\)
\(=\frac{23}{45}\)
\(\left(\frac{141414}{151515}+\frac{3333}{5555}\right)\div3\)
\(=\left(\frac{14}{15}+\frac{3}{5}\right)\times\frac{1}{3}\)
\(=\frac{23}{15\times3}\)
\(=\frac{23}{45}\)