Question

completar la fraccion irreducble que falta. 6/7+____=25/28 , 9/10-____=7/30 . ___+5/6=13/12

Answer 1

1.-25/28-6/7=25/28-24/28=1/28
2.-9/10+7/30=27/30+7/30=34/30=17/15
3.-3/12-5/6=3/12-10/12=-7/12