8/10+3/30-1/20=
3/12+4/8-1/4=
7/8+2/5-3/4=
7/15+2/3-3/5=
2/3+4/9-1/6=
6/7+4/6-2/3=

Respuestas

Respuesta dada por: RiveroNahuel
1
8/10+3/30-1/20 = 48+6 -3/60 = 51/60

3/12+4/8-1/4= 6+12-6 /24 = 12/24 = 1/4

7/8+2/5-3/4= 70+32-60/80 =42/80=21/40=8/15

7/15+2/3-3/5 = 7+10-9/15 = 8/15
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