Question

Plis to na jutro.......

Answer 1

a)

2/3 + 2/9 = 6/9 + 2/9 = 8/9

b)

3/4 + 5/12 = 9/12 + 5/12 = 16/12 = 4/3 = 1 1/3

c)

2 1/3 + 1 7/15 = 7/3 + 22/15 = 35/15 + 22/15 = 57/15 = 3 12/15 = 3 4/5

d)

1 3/5 + 5 4/7 = 8/5 + 39/7 = 56/35 + 195/35 = 251/35 = 7 6/35

e)

4 9/14 + 2 11/21 = 65/14 + 53/21 = 1365/294 + 742/294 = 2107/294 = 7 49/294 = 7 1/6

f)

3 1/12 + 1 5/18 = 37/12 + 23/18 = 666/216 + 276/216 = 942/216 = 4 78/216 = 4 39/108 = 4 13/36