Question

subtract.
1. 6/9-4/9.
2. 8/5-7/15​

Answer 1

1) 6/9-4/9
So the denominators are same so no need to take out the lcm.
=6-4/9
=2/9

2) 8/5-7/15
Here denominators are different,
LCM=15
24/15-7/15
=24-7/15
=17/15

Answer 2

1.2/9 2.17/15

Step-by-step explanation:

1.6/9-4/9

=6-4/9

=2/9 (Ans)

2.8/5-7/15

=24-7/15 (by taking out L.C.M of the denominator)

=17/15 (ANS)