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\(\frac{5}{27}+\frac{3}{4}+\frac{22}{27}+\frac{1}{4}\)
\(=\left(\frac{5}{27}+\frac{22}{27}\right)+\left(\frac{3}{4}+\frac{1}{4}\right)\)
\(=1+1\)
\(=2\)
\(\frac{89}{92}-\frac{30}{92}-\frac{59}{92}\)
\(=\frac{89-30-59}{92}\)
\(=\frac{59-59}{92}\)
\(=\frac{0}{92}\)
\(=0\)
58 + 92 -73:11
=58 + 92 -73/11
=150-73/11
=1577/11
25+72:(24+1)+72
=25+72:25+72
=25+2,88+72
=27,88+72
=99,88
\(=150-\frac{73}{11}=\frac{1577}{11}\)
\(=25+72:25+72=25+72:\left(25+1\right)=25+72:26=25+3=28\)
Ta có :
\(\frac{5}{9}\times\frac{2}{7}=\frac{10}{63};\frac{2}{3}+\frac{5}{6}=\frac{3}{2}\) \(5-\frac{13}{17}=\frac{72}{17};\frac{9}{11}:\frac{5}{13}=\frac{117}{55}\)
\(5+\frac{9}{14}=\frac{79}{14};\frac{6}{54}:8=\frac{1}{72}\) \(\frac{24}{72}-\frac{202}{909}=\frac{1}{9};\frac{9}{11}:\frac{5}{13}=\frac{117}{55}\)
Học tốt nha !
#Sơn#
5/9\(\times\)2/7=10/63
2/3+5/6=4/6+5/6=9/6=3/2
5+9/14=70/14+9/14=79/14
6/54:8=1/9:8=1/9\(\times\)1/8=1/72
5-13/17=85/17-13/17=72/17
3:9/10=3\(\times\)10/9=30/9=10/3
24/72-202/909=1/9
9/11:5/13=9/11\(\times\)13/5=117/55
=(7x3)/(3x23)+(4x4)/(23x4)+12/23-(16x2)/27x2)
=7/23+4/23+12/23-16/27
=23/23-16/27
=1-16/27=11/27
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+34+25+26+27+28+29+30=475
(1+19)+(2+18)+(3+17)+(4+16)+(5+15)+(6+14)+(7+13)+(8+12)+(9+11)+20
=20+20+20+20+20+20+20+20+20+20
=20x10
=200
đi mình chỉ cho