Question

oblicz:
a) 4/7 + 2/7
b) 11/15 - 4/15
c) 3 9/16 + 2 2/16
d) 6 8/9 - 2 1/9
e)1 1/4 + 2/5
f) 5 3/4 + 1 3/7
g) 4 2/3 - 2 1/7
h) 7 1/10 6 4/5

plss na teras!!!!!!

Answer 1

a) 4/7 + 2/7 = 6/7 = 1 1/7

b) 11/15 - 4/15=7/15 = 2 1/15

c) 3 9/16 + 2 2/16 = 5 11/16

d) 6 8/9 - 2 1/9 = 4 7/9

e ) 1 1/4 + 2/5 = 5/4 +2/5 = 25/20 +8/20 = 33/20

f) 5 3/4 + 1 3/7= 5 21/28 + 1 12/28 = 6 33/28

g) 4 2/3 - 2 1/7 = 4 14/21 - 2 3/21 = 2 11/21

h) Jakie działanie ? Jeśli odejmowanie :

7 1/10 - 6 4/5 = 7 1/10 - 6 8/10 = 6 10/10 - 6 8/10 = 2/10 = 1/5