Step-by-step explanation:
-3/9-4/5
=(-15-36)/45
= -51/45
-3/5-(-2/15)
= -3/5+2/15
= (-9+2)/15
= -7/15
5-2 1/4
=5-9/4
=(20-9)/4
=11/4
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Answers & Comments
Step-by-step explanation:
-3/9-4/5
=(-15-36)/45
= -51/45
-3/5-(-2/15)
= -3/5+2/15
= (-9+2)/15
= -7/15
5-2 1/4
=5-9/4
=(20-9)/4
=11/4