\(a,3\dfrac{1}{2}+4\dfrac{3}{5}=\dfrac{81}{10}\\ b,\dfrac{3}{4}+6\dfrac{5}{8}=\dfrac{59}{8}\\ 5\dfrac{3}{8}+9\dfrac{2}{7}=\dfrac{821}{56}\\ 4,4\dfrac{1}{2}-2\dfrac{3}{10}=\dfrac{11}{5}\)
\(a,3\dfrac{1}{2}+4\dfrac{3}{5}=\dfrac{81}{10}\\ b,\dfrac{3}{4}+6\dfrac{5}{8}=\dfrac{59}{8}\\ 5\dfrac{3}{8}+9\dfrac{2}{7}=\dfrac{821}{56}\\ 4,4\dfrac{1}{2}-2\dfrac{3}{10}=\dfrac{11}{5}\)
Tính:
1, 3 1/2 + 4 3/5
2, 3/4 + 6 5/8
3, 5 3/8 + 9 2/7
4, 4 1/2 - 2 3/10
Tính:
a, 4 1/3 . 4/9 + 13 2/3 . 4/9
b, 5 1/4 . 3/8 + 10 3/4 . 3/8
c, 6 1/5 . ( -2/7 ) + 14 4/5 . ( -2/7 )
d, 7 1/6 . ( -7/6 ) + 10 5/6 . ( -7/6 )
Tính:
1, -1/5- (-2/3 )
2, -2/5- 1/7
3, 3/5- 5/7
4, 4/7+ -5/8 - 3/28
Thực hiện phép tính:
1, -7/12. 11/8- 37/8. 7/12+ 1/2
2, ( 2/3- 1/4- 5/6 ). ( -2) mũ 2 + 3/2: -15/4
3, -2/5+ 3/10- 3/5+ 7/10- 3/2
Thực hiện phép tính:
1, -7/12. 11/8- 37/8. 7/12+ 1/2
2, ( 2/3- 1/4- 5/6 ). ( -2) mũ 2 + 3/2: -15/4
3, -2/5+ 3/10- 3/5+ 7/10- 3/2
Thực hiện phép tính:
1, -7/12. 11/8- 37/8. 7/12+ 1/2
2, ( 2/3- 1/4- 5/6 ). ( -2) mũ 2 + 3/2: -15/4
3, -2/5+ 3/10- 3/5+ 7/10- 3/2
Thực hiện phép tính:
1, -3/4+ ( 3- 1/4 ) - ( 5/4- 9/2 )
2, -5/7. 13/19+ -5/7. 6/19+ 5/7
3, 2/5- 2/5. 8/3- 2/5. 5/8
Thực hiện phép tính:
1, -3/4+ ( 3- 1/4 ) - ( 5/4- 9/2 )
2, -5/7. 13/19+ -5/7. 6/19+ 5/7
3, 2/5- 2/5. 8/3- 2/5. 5/8
Thực hiện phép tính:
1, -3/4+ ( 3- 1/4 ) - ( 5/4- 9/2 )
2, -5/7. 13/19+ -5/7. 6/19+ 5/7
3, 2/5- 2/5. 8/3- 2/5. 5/8