3.<,>,=
3-5/6....>...1+5/6 41/60-11/60....=....3/8+1/8
2/5+4/15....>...9/10-3/5 1/3-1/12..<....7/8-5/16
3-5/6 > 1+5/6
41/60 -11/60 = 3/8+1/8
2/5+4/15 > 9/10-3/5
1/3-1/12 < 7/8-5/16
10/3...1/3. 10/6...3/8. 17/4...5/6. 1/3...5/9 5/8...7/5 3/4...15/6 10/9...10/11 7/8...7/2 15/9...3/8 15/7...15/8 16/5...16/7 25/11...1
a) 60 × (7/12 + 4/15) =
b) 5/6 ×( 6/5 - 6/7 ) =
c) 1/2 × 2/3 × 3/4 × 4/5 × 5/6× 6/7 × 7/8 × 8/9 =
bài 1
4/7+4
3+6/11
3-5/7
21/9-2
15/24+2
63/45-20/25
3/4-2/8
6/7-5/8
37/45-5/9
46/39-11/13
5/12+3/4+1/3
1/2+3/7+11/14
7/10-(1/5+1/4)
15/4-2/3-3/4
1/2+2/3+3/4+4/5+5/6+6/7+7/8+8/9+9/10+10/11+11/12+12/13+13/14+14/15=?
bài 1:
1/4 + 2/3 2/7 + 2/3 2/5 + 1/3 2/3 + 1/2 1/3 + 3/5 4/5 + 1/3
1/8 + 3/4 1/36 + 5/12 1/3 + 1/6 + 1/18.
bài 2:
15/16 - 3/16 17/18 - 5/6 3/4 - 4/9 1/2 - 2/5 5/6 - 3/10 3-1/3
4/5 - 1/10 5/2 - 1 5/8 - 2/5.
bài 1 : tính phân số:
a) \(\frac{5}{7}+\frac{4}{9}=?;\frac{4}{5}-\frac{2}{3}=?;\frac{9}{11}+\frac{3}{8}=?;\frac{16}{25}-\frac{2}{5}=?\)=?
b)\(5+\frac{3}{5}=?;10-\frac{9}{16}=?;\frac{2}{3}-\left(\frac{1}{6}+\frac{1}{8}\right)=?\)
c)\(\frac{5}{7}+\frac{7}{6}=?;\frac{7}{12}+\frac{17}{18}=?;\frac{9}{8}+\frac{15}{32}=?;4+\frac{35}{45}=?\)
d)\(\frac{11}{4}-\frac{15}{16}=?;\frac{5}{6}-\frac{5}{8}=?;\frac{196}{64}-2=?;3-\frac{13}{9}=?\)
e)\(\frac{8}{5}+\frac{7}{6}+\frac{5}{9}-2=?;3-\frac{5}{6}-\frac{4}{9}+\frac{32}{24}=?\)
tính
1/2 x { 3/4 cộng 2/5 } .
3/4 : { 8/9 cộng 16/3 } .
1/5 : 1/10 -1/3 .
3/4 x { 20/9 -8/15 } .
1/7: 5/14 -3/2 .
3/2 x {11/6 -5/12 } .
các anh chị giải giúp em nhé !
1+2+3+4+5+6+7+8+9+0+1-2-3-4-4-5-6-7-8-9-0+10+20+30+40+50+60+70+80+90=
1 < , > , =
7/4 : 14/3 ... 5/8 : 5/2 9/7 : 27/11 .... 1/3: 7/10 16/7 : 4 ...... 9/14 x 4/3
4/9 : 8/3 ..... 5/3 x 1/10 4/3 : 7/2 ....... 28/33 x 22/35 27/12 + 5/6 ..... 7/3 : 4/5
2, tính = cách thuận tiện nhất
a, 13/8 : 5/6 : 3/5 - 2/3 = .................................................
b, 14/9 : 13/12 + 4/3 : 13/12 = .......................................
c, 39/16 : 5/8 - 7/16 : 5/8 + 4/5 =....................................
d, 16/17 x 12/19 + 16/17 x 7/19 - 2/3 = .....................................
3, tính
a, 11/9 + 7/6 x ( 2- 1/3 ) = ..........................................................
= .....................................................
b, 4+ ( 12/15 : 9/2 ) x15/16=..........................................
= .............................................
c,60/11 : 12=.................................
4, Chu vi của hình vuông là 24/5 m . Tính diện tích của hình vuông đó ?
