Question

Calcule mentalmente:
a : 1/7+6/7
b: 5/6-1/4
c:0,75 - 1/4
d:1/3+1/3+1/3
e:0,5 + 1/2
f:5/6+1,3+1/6+0,7
Com explicação por favor

Answer 1

a)7/7=1
b)10-3/12=7/12
c)3/4-1/4=1/2
d)1+1+1/3=3/3=1
e)1/2+1/2=2/2=1
f)5/6+13/10+1/6+7/10=6/6+20/10=1+2=3