jonka Daniela Cristancho 4 vuotta sitten
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5/2 .1 =
3/4 . (2/3+4/5)=3/4.2/3 +3/4. 4/5=1/2+3/5=5+6/10 =11/10
(2/5) . 15/4 = 30/20 15/4 . 2/5 = 30/20
5/7 + 0 = 5/7
2/3 . 1/4=1/6
diferente denominador
5/4 - 1/6 =15 -2/12 = 13/12
igual denominador
5/4- 3/4 = 8/4
5/7:1/6 =30/7
con diferente denominador
2/3 + 4/5 = 10+12/15 = 22/ 15
con igual denominador
5/7 + 3/7 = 8/7