Question

câu 3; tính biểu thức sau 1 cách thuận tiện nhất

13 phần 50 + 0,59 + 74% + 41 phần 100

Answer 1

\(\dfrac{13}{50}+0,59+74\%+\dfrac{41}{100}\\ =0,26+0,59+0,74+0,41\\ =\left(0,26+0,74\right)+\left(0,59+0,41\right)\\ =1+1=2\)

Answer 2

\(\dfrac{13}{50}+0,59+74\%+\dfrac{41}{100}\)

\(=\dfrac{13}{50}+\dfrac{59}{100}+\dfrac{37}{50}+\dfrac{41}{100}\)

\(=\left(\dfrac{13}{50}+\dfrac{37}{50}\right)+\left(\dfrac{59}{100}+\dfrac{41}{100}\right)\)

\(=\dfrac{50}{50}+\dfrac{100}{100}=1+1\)

\(=2\)

Answer 3

\(\dfrac{13}{50}+0,59+74\%+\dfrac{41}{100}\)

\(=0,26+0,59+0,74+0,41\)

\(=\left(0,26+0,74\right)+\left(0,59+0,41\right)\)

\(=1+1\)

\(=2\)