Question

arme e efetue as operações, como faço? a) 1,345 + 4,98 b) 0,56 - 0,467 c) 12,5 x 3,12

d) 643,2 : 30 e) 3/5 + 2/3 f) 2/3 : 11/5

Answer 1

a)1,345+4,98= 6,325

b) 0,56-0,467=0,093

c)12,5×3,12=39

d)643,2÷30= 21,44

e)3/5+2/3=9/15+10/15=19/15

f)2/3÷11/5=2/3×5/11=10/33