Rnrffjfjjnfnjfjgo Rnrffjfjjnfnjfjgo Matemáticas contestada a) 2/3 + 5/6 – 1/12 = b) 31/5-5/8+7/40 – 1 = c) 71/4-( 4-1/2 )= d) 35/8-(2 3/4 +1/8)=
