contestada

FRACCIONES URGENTES POR FAVOR:2/3 + 8/9 - 5/12 + 3/8 =3/10 - 2/7 + 5/6 = 2/5 - 3/13 + 8/10 - 3/2 =5/7 + 8/9 - 3/10 + 9/5 =1/5 - 2/7 + 3/11 - 5/8 =2/3 + - 6/5 - 3/10 =5  3/4 - 5/7 + 10 - 4  1/9 =1/21 + 3/13 - 1/19  - 1/49 + 2/65=3/10 - 5  1/20 + 2 - 4  1/4 + 7/10=