tính nhanh:
19/4 + 37/100 + 1/8 +1/2 + 163/4 + 6/25 + 9/25
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a.
(5/11 + 6/11 ) + ( 1/4 +3/4) + ( 6/25 + 9/25)
= 11/11 + 4/4 + 15/25
= 1 +1 + 3/5
= 2+3/5 = 13/5
b.
( 37/100 + 163/100) + (1/8 + 3/8 ) + 19/4 + 1/2
= 200/100 + 4/8 + ( 19/4 + 2/4)
= 2 + 1/2 + 21/4
= 31/4
4750/1000 + 370/1000 + 5280/1000 + 2500/1000 + 37/12 = 129/10 + 37/12 = 959/60
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\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{1}{2}\right)+\frac{19}{4}\)
\(=2+1+\frac{19}{4}\)
\(=3+\frac{19}{4}\)
\(=\frac{31}{4}\)
\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{1}{2}\right)+\frac{19}{4}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{4}{8}\right)+\frac{19}{4}\)
\(=2+1+\frac{19}{4}\)
\(=3+\frac{19}{4}\)
\(=\frac{31}{4}\)
Tích nha
\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\frac{19}{4}+\frac{37}{100}+\frac{163}{100}+\frac{1}{8}+\frac{3}{8}+\frac{1}{2}\)
\(=\frac{19}{4}+2+\frac{1}{2}+\frac{1}{2}\)
\(=\frac{19}{4}+2+1\)
\(=\frac{19}{4}+3\)
\(=\frac{31}{4}\)
\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\left(\frac{19}{4}+\frac{1}{2}\right)+\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}\right)\)
\(=\frac{21}{4}+2+\frac{1}{2}\)
\(=5,25+2+0,5\)
\(=7,75\)
Ai k mik mik k lại
19/4 + 37/100 + 1/8 + 1/2 + 163/4 + 6/25 + 9/25
=( 19/4 + 163/4 )+ 37/100 + (1/8 + 1/2 ) + ( 6/25 + 9/25 )
= 182/4 +37/100+5/8+3/5
=(182/4+37/100+3/5)+5/8
=(4550/100+37/100+60/100)+5/8
=4647/100+5/8
=9419/200