Question

Calcule as frações:
a) 3sobre4-2sobre3
b)2sobre5-1sobre3
c) 4sobre5+3sobre25
d)7sobre14+3sobre2
e)7+½sobre3

urgenteee

Answer 1

3/4 - 2/3 = 9/12 - 8/12 = 1/12
2/5 - 1/3 = 6/15 - 5/15 = 1/15
4/5 - 1/3 = 12/15 + 5/15 = 17/15
7/14 + 3/2 = 7/14 + 21/14 = 28/14 = 2
( 7 + 1/2 )/3 = 15/6 = 5/2