Respuesta:
común denominador
28, 10, 63, 44
fracciones equivalentes
8/28 + 14/28
2/14 + 10/28
4/10 + 6/20
18/63 + 28/63
11/44 + 12/44
resultado suma
2/7 + 2/4 = (8+14)/28= 22/28 = 11/14
1/7 + 5/14 = (2+5)/14= 7/14 = 1/7
2/5 + 3/10= (4+3)/10= 7/10
2/7 + 4/9= (18+28)/63= 46/63
1/4 + 3/11= (11+12)/44= 23/44
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Verified answer
Respuesta:
común denominador
28, 10, 63, 44
fracciones equivalentes
8/28 + 14/28
2/14 + 10/28
4/10 + 6/20
18/63 + 28/63
11/44 + 12/44
resultado suma
2/7 + 2/4 = (8+14)/28= 22/28 = 11/14
1/7 + 5/14 = (2+5)/14= 7/14 = 1/7
2/5 + 3/10= (4+3)/10= 7/10
2/7 + 4/9= (18+28)/63= 46/63
1/4 + 3/11= (11+12)/44= 23/44