Question

a) 1 7/15 + 1 1/6 =?

1 7/15 + 6 3/10 =?

3 2/9 + 1 1/6 =?

3 2/9 + 6 3/10=?

b)5 1/3 - 2 3/4 =?

5 1/3 - 2 3/5 =?

7 3/7- 2 3/4=?

7 3/7-2 3/5=?

Obliczenia przyjmuje w formie odowiedzi. :pp

Answer 1

a) =1 14/30 + 1 5/30= 2 19/30

1 7/15 + 6 3/10 = 1 14/30 + 6 9/30 =7 23/30

3 2/9 + 1 1/6= 3 4/18 + 1 3/18= 4 7/18

3 2/9 +6 3/10 = 3 20/90 + 6 27/90=  9  47/90 

 

b) 5 1/3 - 2 3/4 = 5  4/12  -  2  9/12= 3  7/12

5 1/3 - 2 3/5 = 5 5/15 - 2 9/15= 2 11/15

7 3/7 - 2 3/4 = 7 12/28 - 2 21/28= 4 19/28

7 3/7 - 2 3/5 = 7 15/35 - 2 21/35 = 4 29/35

Answer 2

a) =1 14/30 + 1 5/30=2 19/30

1 7/15 + 6 3/10=7 23/30

3 2/9 + 1 1/6=4 7/18

3 2/9 +6 3/10=9  47/90 

 

b) 5 1/3 - 2 3/4=3  7/12

5 1/3 - 2 3/5=2 11/15

7 3/7 - 2 3/4=4 19/28

7 3/7 - 2 3/5=4 29/35