pomóżcie obliczyć matme :
(jak będę pisała np. 5\8 czyli to ułamek zwykły pięć ósmych)
1. 5\6 + 0,3 =
2. 0,25 + 3\7
3. 4 5\8 + 0,6 =
4. 0,15 + 7 1\4
5. 3\4 + 4,56
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1. 5\6 + 0,3 = =5/6 + 3/10 = 25/30 + 9/30 = 34/30 = 1 4/30
2. 0,25 + 3\7 = 1/4 + 3/7= 7/28 + 12/28 = 19/28
3. 4 5\8 + 0,6 = 4 5/8 + 6/10 = 4 25/40 + 24/40 = 4 49/40 = 5 9/40
4. 0,15 + 7 1\4 = 15/100 + 7 25/100 = 7 40/100 = 7 2/5
5. 3\4 + 4,56 = 3/4 + 456/100 =75/100 + 456/100 = 531/100 = 5 31/100