Question

rút gọn rồi tính:                                                                     a) \(\dfrac{15}{25}-\dfrac{3}{21}\)                                b) \(\dfrac{24}{36}-\dfrac{6}{12}\)                         AI ĐÚNG MÌNH TICK NHA

 

Answer 1

a, 15/25 - 3/21 = 3/5 - 1/7 = 21/35 - 5/35 = 18/35

b, 24/36 - 6/12 = 2/3 - 1/2 = 4/6 - 3/6 = 1/6

Answer 2

a)15/25-3/21=3/5-1/7=16/35                b)24/36-6/12=2/3-1/2=1/6

Answer 3

Cảm ơn

 

Answer 4

TL

a) \(\frac{15}{25}\)-\(\frac{3}{21}\)=\(\frac{16}{35}\)

b) \(\frac{24}{36}\)-\(\frac{6}{12}\)=\(\frac{1}{6}\)

nha bn

HT

Answer 5

Rút gọn rồi tính

a)15/25- 3/21=3/5-1/7=21/35-5/35=16/35

b)24/36-6/12=8/12-6/12=2/12=1/6
 

Answer 6

\(a.\frac{15}{25}-\frac{3}{21}=\frac{3}{5}-\frac{1}{7}=\frac{21}{35}-\frac{5}{35}=\frac{16}{35}\)

\(b.\frac{24}{36}-\frac{6}{12}=\frac{2}{3}-\frac{1}{2}=\frac{4}{6}-\frac{3}{6}=\frac{1}{6}\)

nha

@girllanhlung

Answer 7

a) 15/25 - 3/21 = 3/5 - 1/7 = 21/35 - 5/35 = 16/35

b, 24/36 - 6/12 = 24/36 - 18/36 = 6/36 = 1/6

HT