Fracciones: Suma y RestaOnline version Quiz rápido de fracciones. by Alex Arias 1 1/3 + 1/3 = ? a 2/3 b 4/3 c 1/3 d 1/6 2 2/5 - 1/5 = ? a 3/5 b 1/10 c 2/25 d 1/5 3 3/4 + 1/6 = ? a 5/12 b 7/12 c 13/12 d 11/12 4 5/8 - 3/4 = ? a 1/8 b -1/4 c -1/8 d 3/8 5 7/9 + 2/3 = ? a 11/9 b 15/9 c 13/9 d 5/9 6 1/2 + 1/3 = ? a 1/6 b 7/12 c 5/6 d 2/3 7 3/5 - 2/7 = ? a 11/35 b 15/35 c 11/25 d 9/35 8 2/3 + 4/9 = ? a 10/9 b 2/3 c 8/9 d 14/9 9 9/12 + 5/18 = ? a 37/24 b 37/36 c 39/36 d 31/36 10 3/10 - 1/2 = ? a 1/5 b -3/10 c 0 d -1/5