plz solve this and what is this called
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2/3+4/5
=(10+12)/15
=22/15.
3/7-2/3
=(6-14)/21
=(-8)/21.
4/9-2/3
=(8-18)/27
=(-10)/27
3/6+4/8
=(12+24)/48
=36/48
=3/4.
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photo all answers..
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