= 47/45
= 1 2/45
2.) 0,7 + 4/5
= 7/10 + 4/5
= 7/10 + 8/10
= 15/10
= 1 5/10 = 1 1/2
3.) 3/7 + 0,4
= 3/7 + 4/10
= 3/7 + 1/5
= 15/35 + 7/35
= 22/35
4.) 2/3 + 0,45
= 2/3 + 45/100
= 2/3 + 9/20
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= 47/45
= 1 2/45
2.) 0,7 + 4/5
= 7/10 + 4/5
= 7/10 + 8/10
= 15/10
= 1 5/10 = 1 1/2
3.) 3/7 + 0,4
= 3/7 + 4/10
= 3/7 + 1/5
= 15/35 + 7/35
= 22/35
4.) 2/3 + 0,45
= 2/3 + 45/100
= 2/3 + 9/20