Current location - Training Enrollment Network - Mathematics courses - 30-channel fractional addition and subtraction mixed operation
30-channel fractional addition and subtraction mixed operation
1- 1/4-3/4

5/7+5/9+2/7+4/9

4/6+2/6-2/5-3/5

1/2+3/4+5/8

3/ 10+4/5+7/20

3/8+2/3-5/6

4/5-( 1/3+3/ 10)

1 1-4/ 15- 1 1/ 15

16-( 14/ 19+9/25)

1-( 1/5+ 1/7)

1/4+ 1/8+ 1/6- 1/24

3/4- 1/2+2/3

1/6+2/5+7/ 10

2/3- 1/4- 1/5

19/20-( 1/4+2/5)

7/8-(7/ 10- 1 1/20)

15/ 16+4/5- 15/ 16

3/5- 1/4+3/5

4/ 15+9/20-3/ 10

18/20-( 1/4+2/5)

5/8+7/ 12-4/9

17/ 18-( 1/ 12+ 1/6)

1/2+ 1/4- 1/8

( 14/ 15-2/5)- 1/3

4/ 1 1+2/5+7/ 1 1+ 1/5

4/5-3/ 10+2/3

3/7-(9/ 14- 1/2)

8/9-5/9+ 1/6

8/ 15+2/5+ 1/2

2/3-4/7+5/6

The 30th is not enough for me.