SHANA7265 SHANA7265 Mathématiques Answered Calculez. 2/5 + 3/5 × 1/2 =( 4/5 + 3/10 ) × 2/7 =1/2 + 3/2 × 5/7 + 2/7 =4/7 - 1/5 × 3/2 =