Question

e) 3/4+(-1/4)+(-2/5) f)2+3+(-4/3) faz a conta pfv!!!

Answer 1

e
3/4 - 1/4 - 2/5 =
mmc = 20
( 15 - 5 -8)/20 = 2/20 = 1/10 ****
f
2/1 + 3/1 - 4/3 =
mmc= 3
( 6 + 9 - 4)/3 = 11/3 ***